INDEMNIFICATION
ESCROW AGREEMENT


This
Escrow Agreement (this “Agreement”) is entered into as of January 17, 2012 by and between Dynastar Holdings, Inc.,
formerly known as Medical Design Studios, Inc., a Nevada corporation (the “Parent”), John S. Henderson IV (the “Indemnification
Representative”) and Gottbetter & Partners, LLP (the “Escrow Agent”).


WHEREAS,
the Parent has entered into an Agreement and Plan of Merger and Reorganization (the “Merger Agreement”) with Dynastar
Ventures, Inc., a Delaware corporation (the “Company”), (i) pursuant to which a wholly-owned subsidiary of the Parent
will merge with and into the Company, with the Company surviving the merger, (ii) the Company will become a wholly-owned subsidiary
of the Parent, and (iii) the stockholders of the Company (the “Company Stockholders”) will receive shares of common
stock of the Parent (the “Merger Shares”);


WHEREAS,
the Merger Agreement provides that 95% of the Merger Shares (the “Initial Shares”) to be issued to such Company
Stockholders shall be delivered to such Company Stockholders and 5% of the Merger Shares (the “Escrow Shares”) to
be issued to such Company Stockholders shall be delivered to the Escrow Agent to secure the indemnification obligations of the
Company Stockholders as of the Closing Date, as such term is defined in the Merger Agreement (collectively, the “Indemnifying
Stockholders”), to the Parent; and


WHEREAS,
the Merger Agreement provides for the execution of this Agreement and the establishment of an escrow account and the parties
hereto desire to establish the terms and conditions pursuant to which such escrow account will be established and maintained.


NOW,
THEREFORE, the parties hereto hereby agree as follows:


1.         
Escrow and Indemnification.


(a)         Escrow
of Shares. Simultaneously with the execution of this Agreement, the Parent shall cause to be issued and shall deposit with
the Escrow Agent certificates representing an aggregate number of shares of common stock of the Parent, as determined pursuant
to Section 1.8(b) of the Merger Agreement, issued in the name of the Escrow Agent. The shares deposited with the Escrow Agent
pursuant to this Section 1(a) are referred to herein as the “Escrow Shares.” The Escrow Shares shall be held as a
trust fund and shall not be subject to any lien, attachment, trustee process or any other judicial process of any creditor of
any party hereto. The Escrow Agent agrees to hold the Escrow Shares in an escrow account (the “Escrow Account”), subject
to the terms and conditions of this Agreement.


(b)         Indemnification.
The Indemnifying Stockholders have agreed in Section 6.1 of the Merger Agreement to indemnify and hold harmless the Parent from
and against certain Damages (as defined in Section 6.1 of the Merger Agreement). The Escrow Shares shall be (i) security for such
indemnity obligation of the Indemnifying Stockholders, subject to the limitations, and in the manner provided, in this Agreement
and the Merger Agreement and (ii) shall be the exclusive means for the Parent to collect any Damages with respect to which the
Parent is entitled to indemnification under Article VI of the Merger Agreement.



    	 



    	 



    



(c)         Dividends,
Etc. Any securities distributed in respect of or in exchange for any of the Escrow Shares, whether by way of stock dividends,
stock splits or otherwise, shall be issued in the name of the Escrow Agent or its nominee and shall be delivered to the Escrow
Agent, who shall hold such securities in the Escrow Account. Such securities shall be considered Escrow Shares for purposes hereof.
Any cash dividends or property (other than securities) distributed in respect of the Escrow Shares shall promptly be distributed
by the Escrow Agent to the Indemnifying Stockholders in accordance with Section 3(c) hereof.


(d)         Voting
of Shares. The Indemnification Representative shall have the right, in his sole discretion, on behalf of the Indemnifying
Stockholders, to direct the Escrow Agent in writing as to the exercise of any voting rights pertaining to the Escrow Shares, and
the Escrow Agent shall comply with any such written instructions. In the absence of such instructions, the Escrow Agent shall
not vote any of the Escrow Shares. The Indemnification Representative shall have no obligation to solicit consents or proxies
from the Indemnifying Stockholders for purposes of any such vote.


(e)         Transferability.
The respective interests of the Indemnifying Stockholders in the Escrow Shares shall not be assignable or transferable, other
than by operation of law. Notice of any such assignment or transfer by operation of law shall be given to the Escrow Agent and
the Parent, and no such assignment or transfer shall be valid until such notice is given.


2.
         Intentionally Omitted.


3.
         Distribution of Escrow Shares.


(a)         The
Escrow Agent shall distribute the Escrow Shares only in accordance with (i) a written instrument delivered to the Escrow Agent
that is executed by both the Parent and the Indemnification Representative and that instructs the Escrow Agent as to the distribution
of some or all of the Escrow Shares, (ii) an order of a court of competent jurisdiction, a copy of which is delivered to the Escrow
Agent by either the Parent or the Indemnification Representative, that instructs the Escrow Agent as to the distribution of some
or all of the Escrow Shares, or (iii) the provisions of Section 3(b) hereof.


(b)         Within
five business days after January 17, 2014 (the “Termination Date”), the Escrow Agent shall distribute to the Indemnifying
Stockholders all of the Escrow Shares then held in escrow, registered in the names of the Indemnifying Stockholders. Notwithstanding
the foregoing, if the Parent has previously delivered to the Escrow Agent a copy of a Claim Notice (as hereinafter defined) and
the Escrow Agent has not received written notice of the resolution of the claim covered thereby, or if the Parent has previously
delivered to the Escrow Agent a copy of an Expected Claim Notice (as hereinafter defined) and the Escrow Agent has not received
written notice of the resolution of the anticipated claim covered thereby, the Escrow Agent shall retain in escrow after the Termination
Date such number of Escrow Shares as have a Value (as defined in Section 4 below) equal to the Claimed Amount (as hereinafter
defined) covered by such Claim Notice or equal to the estimated amount of Damages set forth in such Expected Claim Notice, as
the case may be. Any Escrow Shares so retained in escrow shall be distributed only in accordance with the terms of clauses (i)
or (ii) of Section 3(a) hereof. For purposes of this Agreement, a Claim Notice means a written notification under the Merger Agreement
given by the Parent to the Indemnifying Stockholders which contains (i) a description and the amount (the “Claimed Amount”)
of any Damages incurred or reasonably expected to be incurred by the Parent, (ii) a statement that the Parent is entitled to indemnification
under Article 6 of the Merger Agreement for such Damages and a reasonable explanation of the basis therefor, and (iii) a demand
for payment (in the manner provided in Section 6.3 of the Merger Agreement) in the amount of such Damages. For purposes of this
Agreement, an Expected Claim Notice means a notice delivered pursuant to the Merger Agreement by the Parent to an Indemnifying
Stockholder, before expiration of a representation or warranty, to the effect that, as a result a legal proceeding instituted
by or written claim made by a third party, the Parent reasonably expects to incur Damages as a result of a breach of such representation
or warranty.



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(c)         Any
distribution of all or a portion of the Escrow Shares (or cash or other property pursuant to Section 2(c)) to the Indemnifying
Stockholders shall be made by delivery of stock certificates issued in the name of the Indemnifying Stockholders (or cash or other
property), covering such percentage of the Escrow Shares (or cash or other property) being distributed as is calculated in accordance
with the percentages set forth opposite each such Indemnifying Stockholder’s name on Attachment A attached hereto (which
Attachment shall be updated after the date hereof if the Parent deposits additional Escrow Shares in the Escrow Account on behalf
of additional Company Stockholders after the Closing Date). Distributions to the Indemnifying Stockholders shall be made by mailing
stock certificates to such holders at their respective addresses shown on Attachment A (or such other address as may be provided
in writing to the Escrow Agent by any such Indemnifying Stockholder). No fractional Escrow Shares shall be distributed to Indemnifying
Stockholders pursuant to this Agreement. Instead, the number of shares that each Indemnifying Stockholder shall receive shall
be rounded up or down to the nearest whole number (provided that the Indemnification Representative shall have the authority to
effect such rounding in such a manner that the total number of whole Escrow Shares to be distributed equals the number of Escrow
Shares then held in the Escrow Account).


4.
         Valuation of Escrow Shares. For purposes of this Agreement, the “Value”
of any Escrow Shares shall be $0.20 per share, multiplied by the number of such Escrow Shares.


5.
         Fees and Expenses of Escrow Agent. The Parent shall pay the fees
of the Escrow Agent for the services to be rendered by the Escrow Agent hereunder.


6.
         Limitation of Escrow Agent’s Liability.


(a)         The
Escrow Agent shall incur no liability with respect to any action taken or suffered by it in reliance upon any notice, direction,
instruction, consent, statement or other documents believed by it to be genuine and duly authorized, nor for other action or inaction
except its own willful misconduct or gross negligence. The Escrow Agent shall not be responsible for the validity or sufficiency
of this Agreement. In all questions arising under the Escrow Agreement, the Escrow Agent may rely on the advice of counsel, and
the Escrow Agent shall not be liable to anyone for anything done, omitted or suffered in good faith by the Escrow Agent based
on such advice. The Escrow Agent shall not be required to take any action hereunder involving any expense unless the payment of
such expense is made or provided for in a manner reasonably satisfactory to it. In no event shall the Escrow Agent be liable for
indirect, punitive, special or consequential damages.


(b)         The
Parent and the Indemnifying Stockholders agree to indemnify the Escrow Agent for, and hold it harmless against, any loss, liability
or expense incurred without gross negligence or willful misconduct on the part of Escrow Agent, arising out of or in connection
with its carrying out of its duties hereunder. The Parent, on the one hand, and the Indemnifying Stockholders, on the other hand,
shall each be liable for one-half of such amounts.



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7.
         Liability and Authority of Indemnification Representative; Successors and
Assignees.


(a)         The
Indemnification Representative shall not incur any liability to the Indemnifying Stockholders with respect to any action taken
or suffered by him in reliance upon any note, direction, instruction, consent, statement or other documents believed by him to
be genuinely and duly authorized, nor for other action or inaction except his own willful misconduct or gross negligence. The
Indemnification Representative may, in all questions arising under the Escrow Agreement, rely on the advice of counsel and the
Indemnification Representative shall not be liable to the Indemnifying Stockholders for anything done, omitted or suffered in
good faith by the Indemnification Representative based on such advice.


(b)         In
the event of the death or permanent disability of the Indemnification Representative, or his or her resignation or termination
as an Indemnification Representative, a successor Indemnification Representative shall be elected by a majority vote of the Indemnifying
Stockholders, with each such Indemnifying Stockholder (or his, her or its successors or assigns) to be given a vote equal to the
number of votes represented by the shares of stock of the Company held by such Indemnifying Stockholder immediately prior to the
effective time of the Merger Agreement. Each successor Indemnification Representative shall have all of the power, authority,
rights and privileges conferred by this Agreement upon the original Indemnification Representative, and the term “Indemnification
Representative” as used herein shall be deemed to include each successor Indemnification Representative.


(c)         The
Indemnification Representative shall have full power and authority to represent the Indemnifying Stockholders, and their successors,
with respect to all matters arising under this Agreement and Article 6 of the Merger Agreement and all actions taken by the Indemnification
Representative hereunder or under Article 6 of the Merger Agreement shall be binding upon the Indemnifying Stockholders, and their
successors, as if expressly confirmed and ratified in writing by each of them. Without limiting the generality of the foregoing,
the Indemnification Representative shall have full power and authority to interpret all of the terms and provisions of this Agreement,
to compromise any claims asserted hereunder and to authorize any release of the Escrow Shares to be made with respect thereto,
on behalf of the Indemnifying Stockholders and their successors.


(d)         After
Closing Date, the majority vote of the Indemnifying Stockholders may terminate the Indemnification Representative and appoint
a successor Indemnification Representative in accordance with the terms of Section 7(b) above.


(e)         The
Escrow Agent may rely on the Indemnification Representative as the exclusive agent of the Indemnifying Stockholders under this
Agreement and shall incur no liability to any party with respect to any action taken or suffered by it in good faith reliance
thereon.



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8.         
Amounts Payable by Indemnifying Stockholders. The amounts payable by the Indemnifying Stockholders under this Agreement (i.e.,
the indemnification obligations pursuant to Section 6(b)) shall be payable solely as follows. The Escrow Agent shall notify the
Indemnification Representative of any such amount payable by the Indemnifying Stockholders as soon as it becomes aware that any
such amount is payable, with a copy of such notice to the Parent. On the sixth business day after the delivery of such notice,
the Escrow Agent shall sell such number of Escrow Shares (up to the number of Escrow Shares then available in the Escrow Account),
subject to compliance with all applicable securities laws, as is necessary to raise such amount, and shall be entitled to apply
the proceeds of such sale in satisfaction of such indemnification obligations of the Indemnifying Stockholders; provided that
if the Indemnification Representative delivers to the Escrow Agent (with a copy to the Parent), within five business days after
delivery of such notice by the Indemnification Representative, a written notice contesting the legitimacy or reasonableness of
such amount, then the Escrow Agent shall not sell Escrow Shares to raise the disputed portion of such claimed amount except in
accordance with the terms of clauses (i) or (ii) of Section 3(a).


9.
         Termination. This Agreement shall terminate upon the distribution by
the Escrow Agent of all of the Escrow Shares in accordance with this Agreement; provided that the provisions of Sections 6 and
7 shall survive such termination.


10.         Notices.
All notices, instructions and other communications given hereunder or in connection herewith shall be in writing. Any such
notice, instruction or communication shall be sent either (i) by registered or certified mail, return receipt requested, postage
prepaid, or (ii) via a reputable nationwide overnight courier service, in each case to the address set forth below. Any such notice,
instruction or communication shall be deemed to have been delivered five business days after it is sent by registered or certified
mail, return receipt requested, postage prepaid, or one business day after it is sent via a reputable nationwide overnight courier
service.


If
to the Parent:


Dynastar
Holdings, Inc.


1311
Herr Lane, Suite 205


Louisville,
KY 40222


Attn:
John S. Henderson IV, CEO


Facsimile:
_______________


with
a copy to (which shall not constitute notice hereunder):


Gottbetter
& Partners, LLP


488
Madison Avenue, 12th Floor


New
York, NY 10022


Attn:
Adam S. Gottbetter, Esq.


Facsimile:
212.400.6901


If
to the Indemnification Representative:


John
S. Henderson IV


1311
Herr Lane, Suite 205


Louisville,
KY 40222


Facsimile:
_______________ 



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If
to the Escrow Agent:


Gottbetter
& Partners, LLP


488
Madison Avenue, 12th Floor


New
York, NY 10022


Attn:  Adam
S. Gottbetter, Esq.


Facsimile:  212.400.6901


Any party
may give any notice, instruction or communication in connection with this Agreement using any other means (including personal
delivery, telecopy or ordinary mail), but no such notice, instruction or communication shall be deemed to have been delivered
unless and until it is actually received by the party to whom it was sent. Any party may change the address to which notices,
instructions or communications are to be delivered by giving the other parties to this Agreement notice thereof in the manner
set forth in this Section 10.


11.         Successor
Escrow Agent. In the event the Escrow Agent becomes unavailable or unwilling to continue in its capacity herewith, the Escrow
Agent may resign and be discharged from its duties or obligations hereunder by delivering a resignation to the parties to this
Escrow Agreement, not less than 60 days prior to the date when such resignation shall take effect. The Parent may appoint a successor
Escrow Agent without the consent of the Indemnification Representative and may appoint any other successor Escrow Agent with the
consent of the Indemnification Representative, which shall not be unreasonably withheld. If, within such notice period, the Parent
provides to the Escrow Agent written instructions with respect to the appointment of a successor Escrow Agent and directions for
the transfer of any Escrow Shares then held by the Escrow Agent to such successor, the Escrow Agent shall act in accordance with
such instructions and promptly transfer such Escrow Shares to such designated successor. If no successor Escrow Agent is named
as provided in this Section 11 prior to the date on which the resignation of the Escrow Agent is to properly take effect, the
Escrow Agent may apply to a court of competent jurisdiction for appointment of a successor Escrow Agent.


12.         General.


(a)         Governing
Law; Assigns. This Agreement shall be governed by and construed in accordance with the internal laws of the State of New York
without regard to conflict-of-law principles and shall be binding upon, and inure to the benefit of, the parties hereto and their
respective successors and assigns.


(b)         Counterparts.
This Agreement may be executed in two or more counterparts, each of which shall be deemed an original, but all of which together
shall constitute one and the same instrument.


(c)         Entire
Agreement. Except for those provisions of the Merger Agreement referenced herein, this Agreement constitutes the entire understanding
and agreement of the parties with respect to the subject matter of this Agreement and supersedes all prior agreements or understandings,
written or oral, between the parties with respect to the subject matter hereof.



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(d)         Waivers.
No waiver by any party hereto of any condition or of any breach of any provision of this Agreement shall be effective unless in
writing. No waiver by any party of any such condition or breach, in any one instance, shall be deemed to be a further or continuing
waiver of any such condition or breach or a waiver of any other condition or breach of any other provision contained herein.


(e)         Amendment.
This Agreement may be amended only with the written consent of the Parent, the Escrow Agent and the Indemnification Representative.


(f)         Consent
to Jurisdiction and Service. The parties hereby absolutely and irrevocably consent and submit to the jurisdiction of the courts
in the State of New York and of any Federal court located in the State of New York in connection with any actions or proceedings
brought against any party hereto by the Escrow Agent arising out of or relating to this Escrow Agreement. In any such action or
proceeding, the parties hereby absolutely and irrevocably waive personal service of any summons, complaint, declaration or other
process and hereby absolutely and irrevocably agree that the service thereof may be made by certified or registered first-class
mail directed to such party, at their respective addresses in accordance with Section 10 hereof. 


[signature
page follows]



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IN
WITNESS WHEREOF, the parties have duly executed this Agreement as of the day and year first above written.


	 	DYNASTAR HOLDINGS, INC.	 
	 	 	 
	 	By:	/s/
    Kenneth Spiegeland	 
	 	Name:  Kenneth Spiegeland	 
	 	Title:  Chief Executive Officer	 
	 	 	 
	 	 	/s/ John S.
    Henderson IV	 
	 	John S. Henderson IV, Individually
        and as

        Indemnification

	 	Representative
	 	 	 	 
	 	GOTTBETTER & PARTNERS, LLP	 
	 	 	 	 
	 	By:	/s/
    Adam S. Gottbetter	 
	 	Name:  Adam S. Gottbetter	 
	 	Title:  Managing Partner	 








    	 



    	 



    
































































ATTACHMENT
A


	Name	 	Escrow

                                                                                                             Shares	 	Address	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 	 
	Dr. Wilfred Lee Alcorn	 	6,250	 	 	2222 Highway 130 East	 	 	Shelbyville	 	 	 	IN	 	 	 	37160	 	 
	Roger D. Weaver & Cathy A. Reed	 	6,250	 	 	1109 Richmond Ave.	 	 	Lubbock	 	 	 	TX	 	 	 	73424	 	 
	Michael Panster	 	6,250	 	 	21728 Fall River Drive	 	 	Boca
                                                                                 Raton	 	 	 	FL	 	 	 	33428	 	 
	David Perlmutter & Sima Haya Perlmutter	 	6,250	 	 	12780 Miller Avenue	 	 	Saratoga	 	 	 	CA	 	 	 	95070	 	 
	Arthur Judelsohn	 	6,250	 	 	1900 Rand Building	 	 	Buffalo	 	 	 	NY	 	 	 	14203	 	 
	Michael Lichtenstein	 	12,500	 	 	1200 Federal Highway, Suite 200	 	 	Boca
                                                                                 Raton	 	 	 	FL	 	 	 	33432	 	 
	Todd A. Prins	 	12,500	 	 	4940 Broadway, Suite 108	 	 	San
                                                                                 Antonio	 	 	 	TX	 	 	 	78209	 	 
	Andrew Revocable Trust (William V. Andrew, Trustee)	 	12,500	 	 	4189 West Milky Way, Unit #3	 	 	Chandler	 	 	 	AZ	 	 	 	85226	 	 
	Jerry A. Hickson	 	18,750	 	 	403 Hazeltine Drive	 	 	Austin	 	 	 	TX	 	 	 	78734	 	 
	Michael Splain & Donna Splain	 	18,750	 	 	1559 Rubino Court	 	 	Pleasanton	 	 	 	CA	 	 	 	94566	 	 
	Jose Oleszcouski	 	25,000	 	 	Prolongacion Cipreces 100, Colonia Aplacion
    Juvica	 	 	Queretavo
                                                                                 Qvo	 	 	 	Mexico	 	 	 	76100	 	 
	Harold L. Kaplan	 	31,250	 	 	823 Kimballwood Lane	 	 	Highland
                                                                                 Park	 	 	 	IL	 	 	 	60035	 	 
	Jeff Weintraub	 	43,750	 	 	2500 South Ocean Blvd., Apt. 103	 	 	Boca
                                                                                 Raton	 	 	 	FL	 	 	 	33432	 	 
	Edward F. Feighan	 	62,500	 	 	845 No. High Street	 	 	Columbus	 	 	 	OH	 	 	 	43215	 	 
	Scott K. Dunlop	 	3,600	 	 	93 Branch Street	 	 	Medford	 	 	 	NJ	 	 	 	08055	 	 
	Paul Berger	 	12,500	 	 	100 Chestnut Drive	 	 	Roslyn	 	 	 	NY	 	 	 	11576	 	 
	Gerald F. Heupel	 	6,250	 	 	2111 Apple Tree Lane	 	 	Silver
                                                                                 Springs	 	 	 	MD	 	 	 	20905	 	 
	John S. Henderson IV	 	225,000	 	 	2941 Long Creek Way	 	 	Louisville	 	 	 	KY	 	 	 	40223	 	 
	David Duggins	 	225,000	 	 	7005 New Bern Court	 	 	Prospect	 	 	 	KY	 	 	 	40059	 	 
	Alpharion, LLC	 	50,000	 	 	9300 Shelbyville Road, 10th Floor	 	 	Louisville	 	 	 	KY	 	 	 	40222	 	 
	Robert R. Mohr	 	2,500	 	 	2641 Whittier Avenue	 	 	Louisville	 	 	 	KY	 	 	 	40205	 	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Escrow Shares (5%)	 	793,600