Document:

EXHIBIT 10.2
                                                                    ------------

                         SENIOR SECURED PROMISSORY NOTE

$5,000,000                                                     September 3, 2003

         FOR VALUE RECEIVED, the undersigned, Greystone Manufacturing, L.L.C.,
("Maker") promise to pay to the order of Greystone Plastics, Inc., an Iowa
corporation ("Payee") the principal sum of $5,000,000 to be paid on the due date
hereunder as follows:

               Interest Quarterly at 7.5% fixed per annum beginning on December
               1, 2003, with monthly principal payments in equal monthly amounts
               of $83,333.33 payable over sixty (60) months beginning on
               November 1, 2003.

         The Maker shall have the right to prepay this Note on any date prior to
maturity hereof.

         The Maker liable for payment of the indebtedness evidenced by this Note
hereby agrees and consents that either before or after the maturity of the Note
thereof, the time for its payment may be extended or this Note renewed from time
to time by the holder hereof, without notice and that after such extension,
extensions or renewals, it shall remain bound for the payment hereof,
notwithstanding such extension or extensions.

         If any principal due upon this Note shall not be paid within ten (10)
days of when the same shall become due and payable (whether by extension,
acceleration or otherwise) or if the Maker should make an assignment for the
benefit of creditors, be granted relief under any bankruptcy or insolvency law,
or any receiver, trustee or like officer should be appointed to the custody,
possession or control of any property of the Maker, and any such involuntary
adjudication or appointment is not vacated, set aside or discharged within
thirty (30) days after the occurrence of such event, the holder hereof, may,
without notice, declare all of the unpaid balance hereof to be immediately due
and payable. Such right of acceleration is cumulative and in addition to any
other right or rights of acceleration under any other writing now or hereafter
evidencing or securing payment of any indebtedness evidenced hereby. If this
Note be placed with attorneys upon any default, the holder hereof shall be
entitled to recover all costs of collection (including reasonable attorneys'
fees) from all parties liable hereon.

         This Note is secured pursuant to a Security Agreement by and between
Maker and Payee of this same date and in accordance with the attached UCC
Financing Statement.

         All rights and powers of the holder hereunder shall inure to the
benefit of its successors and assigns and all agreements herein shall bind the
successors and assigns of the undersigned.

         No invalid provision hereof shall affect or impair any other provision
of this Note. The undersigned and any endorser, surety, and guarantor hereof do
hereby acknowledge receipt of a completed copy of this Note.

         This Note shall be effective as of the date first above written, which
the parties agree is the date from which the debt evidenced hereby is owed.

         This Note shall be governed by and construed in accordance with the
applicable laws of the State of Oklahoma.

                                             "MAKER"

                                             GREYSTONE MANUFACTURING, L.L.C.

                                             By: /s/ Warren F. Kruger
                                                 ----------------------------

                                             Name: Warren F. Kruger
                                                   --------------------------

                                             Title: Manager
                                                    -------------------------

All annexes to this agreement are omitted from this Exhibit. The registrant will
furnish supplementally a copy of any omitted annex to the Commission upon
request.EXHIBIT 10.3
                                                                    ------------

                                REAL ESTATE NOTE

$2,500,000                                                     September 3, 2003

         FOR VALUE RECEIVED, the undersigned, Greystone Manufacturing, L.L.C.,
("Maker") promise to pay to the order of Greystone Plastics, Inc., an Iowa
corporation ("Payee") the principal sum of $2,500,000 to be paid on the due date
hereunder as follows:

                  Interest Quarterly at 7.5% fixed per annum, beginning on
                  December 1, 2003 with monthly principal payments amortized
                  over 180 months payable in equal monthly amounts of $13,889
                  per month beginning November 1, 2003.

         The Maker shall have the right to prepay this Note on any date prior to
maturity hereof.

         The Maker liable for payment of the indebtedness evidenced by this Note
hereby agrees and consents that either before or after the maturity of the Note
thereof, the time for its payment may be extended or this Note renewed from time
to time by the holder hereof, without notice and that after such extension,
extensions or renewals, it shall remain bound for the payment hereof,
notwithstanding such extension or extensions.

         If any principal due upon this Note shall not be paid within ten (10)
days of when the same shall become due and payable (whether by extension,
acceleration or otherwise) or if the Maker should make an assignment for the
benefit of creditors, be granted relief under any bankruptcy or insolvency law,
or any receiver, trustee or like officer should be appointed to the custody,
possession or control of any property of the Maker, and any such involuntary
adjudication or appointment is not vacated, set aside or discharged within
thirty (30) days after the occurrence of such event, the holder hereof, may,
without notice, declare all of the unpaid balance hereof to be immediately due
and payable. Such right of acceleration is cumulative and in addition to any
other right or rights of acceleration under any other writing now or hereafter
evidencing or securing payment of any indebtedness evidenced hereby. If this
Note be placed with attorneys upon any default, the holder hereof shall be
entitled to recover all costs of collection (including reasonable attorneys'
fees) from all parties liable hereon.

         This Note is secured by the Mortgage instrument attached hereto as
executed by Maker.

         All rights and powers of the holder hereunder shall inure to the
benefit of its successors and assigns and all agreements herein shall bind the
successors and assigns of the undersigned.

         No invalid provision hereof shall affect or impair any other provision
of this Note. The undersigned and any endorser, surety, and guarantor hereof do
hereby acknowledge receipt of a completed copy of this Note.

         This Note shall be effective as of the date first above written, which
the parties agree is the date from which the debt evidenced hereby is owed.

         This Note shall be governed by and construed in accordance with the
applicable laws of the State of Oklahoma.

                                             "MAKER"

                                             GREYSTONE MANUFACTURING, L.L.C.

                                             By: /s/ Warren F. Kruger
                                                 ----------------------------

                                             Name: Warren Kruger
                                                   --------------------------

                                             Title: Manager
                                                    -------------------------

All annexes to this agreement are omitted from this Exhibit. The registrant will
furnish supplementally a copy of any omitted annex to the Commission upon
request.EXHIBIT 10.4
                                                                    ------------

                           WRAPAROUND PROMISSORY NOTE

$799,454.06                                                    September 3, 2003

         FOR VALUE RECEIVED, the undersigned, Greystone Manufacturing, L.L.C.,
an Oklahoma limited liability company residing at 1613 East 15th Street, Tulsa,
Oklahoma 74120 ("Maker") promise to pay to the order of Bill Hamilton, an
individual ("Payee") the principal sum of $799,454.06 to be paid in accordance
with the terms of the attached US BANCORP Note which has a principal balance of
$799,454.06 and monthly payments of $16,929.93. No payment is due Hamilton as
long as the US BANCORP Note is paid current by Maker and when US BANCORP is paid
off, the Note shall be deemed to be paid in full.

         The Maker shall have the right to prepay this Note on any date prior to
maturity hereof.

         In the event that a portion of the attached US BANCORP Note is unpaid
and in default ("Unpaid Portion") then the Maker will be liable hereunder for
the payment to Payee of an amount equal to the Unpaid Portion.

         If this Note be placed with attorneys upon any default, the holder
hereof shall be entitled to recover all costs of collection (including
reasonable attorneys' fees) from Maker.

         This Note is an unsecured obligation of Maker.

         All rights and powers of the holder hereunder shall inure to the
benefit of its successors and assigns and all agreements herein shall bind the
successors and assigns of the undersigned.

         No invalid provision hereof shall affect or impair any other provision
of this Note. The undersigned and any endorser, surety, and guarantor hereof do
hereby acknowledge receipt of a completed copy of this Note.

         This Note shall be effective as of the date first above written, which
the parties agree is the date from which the debt evidenced hereby is owed.

         This Note shall be governed by and construed in accordance with the
applicable laws of the State of Oklahoma.

                                              "MAKER"

                                              GREYSTONE MANUFACTURING, L.L.C.

                                              By: /s/ Warren F. Kruger
                                                  ----------------------------

                                              Name: Warren F. Kruger
                                                    --------------------------

                                              Title: Manager
                                                     -------------------------

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