Document:

EXHIBIT 10.76

                                 PROMISSORY NOTE

$250,000.00                                                 September 29, 2006

      FOR VALUE RECEIVED, the undersigned, EarthShell Corporation, a Delaware
corporation ("Maker"), located at 1301 York Road, Suite 200, Lutherville, MD
21093, unconditionally promises to pay to the order of E. Khashoggi Industries,
LLC, a Delaware limited liability company ("Holder"), at 3916 State Street,
Suite 110, Santa Barbara, California, 93105, or at such other place as Holder
may designate in writing, the principal sum of TWO HUNDRED FIFTY THOUSAND
DOLLARS ($250,000.00), for the account of Maker in connection with the advance
of interim funding provided by Holder in anticipation of the closing of a major
convertible debt and equity offering expected to close later in 2006.

      This Promissory Note (the "Note") evidences Maker's obligation to pay to
Holder the sums advanced by Holder to Maker pursuant to the terms of this Note.
All sums owing hereunder are payable in lawful money of the United States of
America, in immediately available funds, pursuant to the following terms:

      1. Definitions. Terms which are used in this Note and not otherwise
defined herein shall have the meanings set forth in this Paragraph.

            "Default Rate" means a rate of interest equal to 10.0% per annum,
compounded monthly.

            "Existing Notes" means that certain promissory note, dated October
11, 2005, in the principal amount of $1,000,000, and two promissory notes dated
July 28, 2006 in the principal amounts of $350,000 and $150,000 and issued by
Maker in favor of Holder.

            "Event of Default" means the occurrence or happening, at any time
and from time to time, of any one or more of the following:

            a. Payment of Indebtedness. If Maker fails to pay any portion of the
indebtedness evidenced by this Note within ten (10) days following the date the
same shall become due and payable, whether at the due date stipulated in this
Note or at a date fixed for acceleration or otherwise and such failure continues
for a period of five (5) days following written notice of such failure by Holder
to Maker.

            b. Defaults under the Existing Notes. If Maker commits an Event of
Default under any of the Existing Notes (as the term Event of Default is defined
under each of the Existing Notes, as applicable).

            c. Voluntary Bankruptcy. If Maker shall (i) seek entry of any order
for relief as a debtor in a proceeding under the bankruptcy laws of any
competent jurisdiction; (ii) file a petition seeking relief under the
bankruptcy, arrangement, reorganization or other debtor relief laws of any other
competent jurisdiction; (iii) call a meeting of its creditors or any one of them
for the purpose of requesting a rearrangement or restructuring of its debts or
any concessions with respect to such debt; (iv) make a general assignment for
the benefit of its creditors; or (v) admit in writing its inability to pay its
debts as they mature.
<PAGE>

            d. Involuntary Bankruptcy. If a petition is filed against Maker
seeking relief under the bankruptcy, arrangement, reorganization or other debtor
relief laws of any competent jurisdiction and such petition is not dismissed
within ninety (90) days following the date of its filing.

            e. Appointment of a Receiver. If a court of competent jurisdiction
enters an order, judgment or decree appointing, without the consent of Maker, a
receiver for it, or for all or any material part of its property, and such
order, judgment or decree shall not be and remain vacated, reversed or stayed or
such receiver shall not otherwise be removed within a period of thirty (30) days
following entry of such order.

      2.    Funding of the Note

      The $250,000 will be funded in two installments. The first installment of
$150,000 shall be funded by Holder to Maker on September 29, 2006. The second
installment of $100,000 shall be funded approximately 30 days thereafter.

      3. Interest Accrual; Payments of Principal and Interest; Prepayments.

            a. Interest Accrual. Interest shall accrue on the unpaid principal
balance of this Note at the rate of five and thirteen hundredths percent (5.13%)
per annum, compounded monthly. If the outstanding principal amount of this Note
is not paid in full within ten (10) days of the occurrence of an Event of
Default or, if earlier, the date it matures pursuant to section 3(b), interest
shall accrue on the unpaid balance of this Note at the Default Rate, commencing
on the occurrence of the Event of Default or, if earlier, the maturity date,
until all amounts due under this Note have been paid to Holder. Any such
interest shall be payable on demand.

            b. Payments of Principal. All outstanding principal shall be due and
payable on the earliest to occur of the following: (i) five (5) days following
the date Maker has received significant net cash proceeds from all financing
transactions, equity contributions, and transactions relating to the sale,
licensing, sublicensing or disposition of assets or the provision of services
(including advance royalty payments, proceeds from the sale of Maker's common
stock and fees for technological services rendered to third parties), measured
from the date of this Note and not taking into account the proceeds advanced
under this Note, the Existing Notes, or (ii) the date the Existing Notes become
due and payable, or (iii) the occurrence of an Event of Default.

            c. Application of Payments. All payments hereunder shall be first
applied to Holder's costs and expenses which are reimbursable to Holder pursuant
to Section 4 below, then to any unpaid interest and finally to the outstanding
principal balance. If any payment due date falls on a Saturday, Sunday or a
holiday generally observed by banks in the City of Lutherville, MD, the due date
of the payment shall automatically be extended to the next following business
day.

                                       2
<PAGE>

            d. Computation of Interest. All interest on this Note shall be
computed on the basis of the actual number of days elapsed divided by a year
assumed to consist of 360 days.

            e. Prepayment. Maker may prepay this Note in whole or in part at any
time without penalty or premium.

      4. Default; Remedies. If an Event of Default occurs, the entire
outstanding principal balance of this Note shall become due and payable.

      5. Holder's Costs. Maker shall reimburse Holder for all costs and expenses
incurred in collecting any sums due and payable under this Note, including
reasonable attorneys fees and court costs. All such expenses and costs shall be
paid by Maker within ten (10) days after demand made by Holder. Any amounts not
timely paid shall constitute an Event of Default hereunder and shall bear
interest at the Default Rate thereafter.

      6. Applicable Law. This Note shall be governed by construed in accordance
with the internal laws of the State of California without regard to the
principles of conflicts of law.

      7. No Waiver by Holder. No delay on the part of Holder in the exercise of
any power or right under this Note shall operate as a waiver thereof, nor shall
a single or partial exercise of any power or right preclude other or further
exercise thereof or exercise of any other power or right.

      8. Successors and Assigns. The terms "Holder" and "Maker" as used in this
Note shall include not only the Holder and Maker named herein but also all of
Holder's and Maker's successors and assigns to whom the benefits and burdens of
this Note shall inure.

      9. Notices. All notices, requests, demands, claims and other
communications hereunder shall be in writing and sent or delivered to
personally, by facsimile transmission so long as receipt is confirmed or by
deposit with a reputable overnight courier and addressed to Maker or Holder at
their respective principal business offices located at the addresses set forth
in the first paragraph of this Note.

      10. Usury. It is the intent of Maker that all provisions of this Note
which call for the payment of interest comply in all respects with all
applicable usury statutes and regulations. In the event that the terms of this
Note would require the payment of interest in excess of the amount permitted by
any applicable law or regulation, the terms of the Note shall be deemed to be
modified to comply with all such applicable laws or regulations without any
action by either party. In the event that Holder has received interest in excess
of the amount permitted by any applicable law or regulation, the excess portion
of the interest received shall be deemed to have been a prepayment of principal,
without premium, as of the date received.

      11. Waiver. Maker waives presentment, demand, presentment for payment,
notice of protest or nonpayment, notice of dishonor, notice of default or
delinquency, notice of acceleration, and diligence in bringing suit against any
party hereto or collecting any sums hereunder.

                                       3
<PAGE>

      12. Miscellaneous.

            a. This Note shall be binding on and shall inure to the benefit of
Maker, Holder, and their respective successors and assigns.

            b. Headings are inserted into this Note for convenience only and
shall not be considered in construing any provision.

            c. The terms of this Note may not be changed, nor any of its
provisions waived, without the written consent of both Maker and Holder.

            d. Time shall be of the essence with respect to every provision of
this Note, but no delay in enforcing any right or remedy under this Note shall
be construed to be a waiver of that or any other right or remedy.

            e. The provisions of this Note are severable, and the invalidity or
illegality of any provision shall not be a bar to the enforcement of any other
provision.

            f. This Note is negotiable and fully recourse to Maker.

            g. The person executing this Note on behalf of Maker represents and
warrants that he has the full authority and power to execute and deliver this
Note on behalf of Maker, and such execution and delivery has been authorized by
all appropriate action.

      13. Waiver of Jury Trial. TO THE EXTENT PERMITTED BY APPLICABLE LAW, MAKER
HEREBY IRREVOCABLY WAIVES ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL
PROCEEDING ARISING OUT OF OR RELATING TO THIS NOTE.

      14. Submission to Forum and Jurisdiction. Any legal action or proceeding
with respect to this Note must be brought in the federal or state courts located
in the County of Santa Barbara, State of California, and by execution and
delivery of this Note, Maker hereby irrevocably accepts for itself and in
respect of its property, generally and unconditionally, the jurisdiction of the
aforesaid courts having proper venue. Maker hereby irrevocably waives any
objection which it may now or hereafter have to the laying of venue of any of
the aforesaid actions or proceedings arising out of or in connection with this
Note brought in the aforesaid Santa Barbara courts and irrevocably waives and
agrees not to plead or claim in any such court that any such action or
proceeding brought in any such court has been brought in an inconvenient forum,
and also consents to the service of process by any means authorized by the State
of California.

                             EARTHSHELL CORPORATION,
                             a Delaware corporation

                                    By:  /s/ D. Scott Houston

                                    Its:  Chief Financial officer

                                       4EXHIBIT 10.77

                                 PROMISSORY NOTE

$150,000.00                                                 September 29, 2006

      FOR VALUE RECEIVED, the undersigned, EarthShell Corporation, a Delaware
corporation ("Maker"), located at 1301 York Road, Suite 200, Lutherville, MD
21093, unconditionally promises to pay to the order of ReNewable Products, Inc.
a Delaware corporation (including its assignees, "Holder"), at 1107 Springfield
Road, Lebanon, Missouri 65536, or at such other place as Holder may designate in
writing, the principal sum of ONE HUNDRED FIFTY THOUSAND DOLLARS ($150,000.00),
for the account of Maker, in connection with the advance of interim funding
provided by Holder in anticipation of the closing of a major convertible debt
and equity offering expected to close later in 2006. The loan evidenced by this
Note is being made to Maker by the initial Holder to permit Maker to continue
its operations until more stable financing is secured by Maker, and in partial
consideration of such loan, certain modifications are being made on or about the
date hereof to that certain Sublicense Agreement dated as of May 19, 2005 by and
between Maker and Renewable Products, Inc. (an affiliate of the initial Holder).

      This Note evidences Maker's obligation to pay to Holder the sums advanced
by Holder to Maker pursuant to the terms of this Note. All sums owing hereunder
are payable in lawful money of the United States of America, in immediately
available funds, pursuant to the following terms:

      1. Definitions. Terms which are used in this Note and not otherwise
defined herein shall have the meanings set forth in this Paragraph.

                  "Default Rate" means a rate of interest equal to 10.0% per
annum, compounded monthly.

                  "Event of Default" means the occurrence or happening, at any
time and from time to time, of any one or more of the following:

            a. Payment of Indebtedness. If Maker fails to pay any portion of the
indebtedness evidenced by this Note within ten (10) days following the date the
same shall become due and payable, whether at the due date stipulated in this
Note or at a date fixed for acceleration or otherwise and such failure continues
for a period of five (5) days following written notice of such failure by Holder
to Maker.

            b. Defaults under Other Notes. If Maker commits an Event of Default
under any other promissory note made by Maker on or about the date hereof for
the purposes stated forth herein.
<PAGE>

            c. Voluntary Bankruptcy. If Maker shall (i) seek entry of any order
for relief as a debtor in a proceeding under the bankruptcy laws of any
competent jurisdiction; (ii) file a petition seeking relief under the
bankruptcy, arrangement, reorganization or other debtor relief laws of any other
competent jurisdiction; (iii) call a meeting of its creditors or any one of them
for the purpose of requesting a rearrangement or restructuring of its debts or
any concessions with respect to such debt; (iv) make a general assignment for
the benefit of its creditors; or (v) admit in writing its inability to pay its
debts as they mature.

            d. Involuntary Bankruptcy. If a petition is filed against Maker
seeking relief under the bankruptcy, arrangement, reorganization or other debtor
relief laws of any competent jurisdiction and such petition is not dismissed
within ninety (90) days following the date of its filing.

            e. Appointment of a Receiver. If a court of competent jurisdiction
enters an order, judgment or decree appointing, without the consent of Maker, a
receiver for it, or for all or any material part of its property, and such
order, judgment or decree shall not be and remain vacated, reversed or stayed or
such receiver shall not otherwise be removed within a period of thirty (30) days
following entry of such order.

      2. Interest Accrual; Payments of Principal and Interest; Prepayments.

            a. Interest Accrual. Interest shall accrue on the unpaid principal
balance of this Note at the per annum rate of 5.13%, compounded annually, and
shall be payable together with any payment of principal hereunder. If the
outstanding principal amount of this Note is not paid in full within ten (10)
days of the occurrence of an Event of Default, interest shall accrue on the
unpaid balance of this Note at the Default Rate, commencing on the occurrence of
the Event of Default until all amounts due under this Note have been paid to
Holder. Any such Default Interest shall be payable on demand.

            b. Payments of Principal. All outstanding principal shall be due and
payable on the earliest to occur of the following: (i) the second anniversary of
the date of this Note, (ii) five (5) days following the date Maker has received
significant cash proceeds from any financing transaction, equity contribution,
or transaction relating to the sale, licensing, sublicensing or disposition of
assets or the provision of services (including advance royalty payments,
proceeds from the sale of Maker's common stock and fees for technological
services rendered to third parties), not taking into account the proceeds
advanced under this Note, and (iii) the occurrence of an Event of Default.

            c. Application of Payments. All payments hereunder shall be first
applied to Holder's costs and expenses which are reimbursable to Holder pursuant
to Section 4 below, then to any unpaid interest and finally to the outstanding
principal balance. If any payment due date falls on a Saturday, Sunday or a
holiday generally observed by banks in the City of Lutherville, Maryland, the
due date of the payment shall automatically be extended to the next following
business day.

            d. Computation of Interest. All interest on this Note shall be
computed on the basis of the actual number of days elapsed divided by a year
assumed to consist of 360 days.

                                       2
<PAGE>

            e. Prepayment. Maker may prepay this Note in whole or in part at any
time without penalty or premium.

      3. Default; Remedies. If an Event of Default occurs, the entire
outstanding principal balance of this Note shall become due and payable.

      4. Holder's Costs. Maker shall reimburse Holder for all costs and expenses
incurred in collecting any sums due and payable under this Note, including
reasonable attorneys fees and court costs. All such expenses and costs shall be
paid by Maker within ten (10) days after demand made by Holder. Any amounts not
timely paid shall constitute an Event of Default hereunder and shall bear
interest at the Default Rate thereafter.

      5. Applicable Law. This Note shall be governed by construed in accordance
with the internal laws of the State of Maryland without regard to the principles
of conflicts of law.

      6. No Waiver by Holder. No delay on the part of Holder in the exercise of
any power or right under this Note shall operate as a waiver thereof, nor shall
a single or partial exercise of any power or right preclude other or further
exercise thereof or exercise of any other power or right.

      7. Successors and Assigns. The terms "Holder" and "Maker" as used in this
Note shall include not only the Holder and Maker named herein but also all of
Holder's and Maker's successors and assigns to whom the benefits and burdens of
this Note shall inure.

      8. Notices. All notices, requests, demands, claims and other
communications hereunder shall be in writing and sent or delivered to
personally, by facsimile transmission so long as receipt is confirmed or by
deposit with a reputable overnight courier and addressed to Maker or Holder at
their respective principal business offices located at the addresses set forth
in the first paragraph of this Note.

      9. Usury. It is the intent of Maker that all provisions of this Note which
call for the payment of interest comply in all respects with all applicable
usury statutes and regulations. In the event that the terms of this Note would
require the payment of interest in excess of the amount permitted by any
applicable law or regulation, the terms of the Note shall be deemed to be
modified to comply with all such applicable laws or regulations without any
action by either party. In the event that Holder has received interest in excess
of the amount permitted by any applicable law or regulation, the excess portion
of the interest received shall be deemed to have been a prepayment of principal,
without premium, as of the date received.

      10. Waiver. Maker waives presentment, demand, presentment for payment,
notice of protest or nonpayment, notice of dishonor, notice of default or
delinquency, notice of acceleration, and diligence in bringing suit against any
party hereto or collecting any sums hereunder.

      11. Miscellaneous.

            a. This Note shall be binding on and shall inure to the benefit of
Maker, Holder, and their respective successors and assigns.

                                       3
<PAGE>

            b. Headings are inserted into this Note for convenience only and
shall not be considered in construing any provision.

            c. The terms of this Note may not be changed, nor any of its
provisions waived, without the written consent of both Maker and Holder.

            d. Time shall be of the essence with respect to every provision of
this Note, but no delay in enforcing any right or remedy under this Note shall
be construed to be a waiver of that or any other right or remedy.

            e. The provisions of this Note are severable, and the invalidity or
illegality of any provision shall not be a bar to the enforcement of any other
provision.

            f. This Note is negotiable and fully recourse to Maker.

            g. The person executing this Note on behalf of Maker represents and
warrants that he has the full authority and power to execute and deliver this
Note on behalf of Maker, and such execution and delivery has been authorized by
all appropriate action.

      12. Waiver of Jury Trial. TO THE EXTENT PERMITTED BY APPLICABLE LAW, MAKER
HEREBY IRREVOCABLY WAIVES ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL
PROCEEDING ARISING OUT OF OR RELATING TO THIS NOTE.

                                    EARTHSHELL CORPORATION,
                                    a Delaware corporation

                                    By:  /s/ D. Scott Houston

                                    Its:   Chief Financial Officer

                                       4

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