Local newspaper today has an article on company in area that has been buying worn-out banknotes from the US government and using them, with other materials, to make toothbrush handles.
http://www.mcall.com/business/mc-biz-berks-county-radius-toothbrush-20180828-story.html
Article says Radius Corp. in Kutztown, Pennsylvania, buys retired US banknotes from US Mint but I think it must be this program of the Bureau of Engraving and Printing that is used. From: https://www.moneyfactory.gov/services/shreddedcurrency.html
"Shredded currency is available through the BEP. Small amounts, as pre-packaged novelty souvenirs, are available for sale in the Washington, DC and Fort Worth visitor centers. Five pound bags of shredded currency can be purchased in our online store and in the Washington, DC visitor center.
Larger amounts of shredded currency for use in artistic or commercial purposes will need to be obtained from a Federal Reserve bank; and written approval from the Chief, Office of Compliance, is required before a Federal Reserve bank will consider honoring currency residue requests. Treasury approval will be based upon the following requirements.
1. The recipient must follow Environmental Protection Agency and other local or state requirements for recycling shredded currency.
2. The shredded currency must not be recycled into paper of printable quality.
3. The residue must not be used as confetti, or in loose form such as used in packing materials.
4. Firmly seal any container in which the residue is placed so that it must be broken in order to remove the residue. The container must be at least 4 mils thick.
5. Due to the presence of various chemicals in ink, the recipient must not use shredded currency for the creation of products designed to hold food or drink for human consumption.
6. If the recipient is intending to make a product with shredded currency, a sample of the product and/or packaging and marketing materials may be required.
7. The recipient must not claim the value of the shredded currency enclosed in a product as having a monetary value greater than the weight of the shredded currency per ounce, or fraction thereof, multiplied by $165 per ounce.
8. The recipient must not ship the shredded currency overseas.
9. The recipient must not place any replica of U.S. currency on any product or container into which shredded currency is placed, or on any related advertising or other written material.
10. The recipient must agree not to resell or otherwise dispose of the residue without Treasury approval."
Will