Moose Poo Card in my Etsy Shop.
Even though I knew my moose poo paper was free of impurities, I didn't want to run into any problems selling to buyers in the U.S. So, I contacted U.S. Customs who in turn contacted the USDA who confirmed that there are no restrictions on this paper.
And here's a funny aside. The agent who responded to my query said, "I once made a moose nugget tie for my brother..."