Making tape out of ducks has been illegal for a long time now.
Its cool though, I wonder how long it lasts.
The best thing about making your own wallet is to create the layout you wish, and be able to make as many card slots as you need.
Actually, I like it when I got these comments. "A lot of you have been asking about this Duct vs. Duck thing we’ve got going... here is an explanation from Jim and Tim, the Duck Tape Guys"
"So, whether you call it Duct Tape or Duck Tape... you are still using the “Ultimate Power Tool” in our estimation."