This looks like a bill turned inside out.
Offers $1, $5, $20 & $100 bills.
To make a "genuine mismade" one has to buy sheets of real bills from the Treasury and cut out this odd bill. The uncut sheets are expensive and you lose all the bills around the outside border. This means "genuine mismade" bills are very pricey.
Because of the low price, for the first time ever, it's affordable to give them away as mementos.
Note that while they do look great they do feel like they are printed on regular paper.