I don't see the crime here at all.
What if someone wanted to make fake bills in the amount of $16.71 and put the image of the Mad magazine boy in the middle of the front? That can't be illegal, either.
I remember purchasing $3 bills as a joke bill in my youth. Everyone knew they were fake, but they were funny. I didn't realize they were somehow illegal.
That is totally bogus.
IIRC, it did work in dollar bill changers at the time. The US Treasury or USSS confiscated the plates for that particular
page, or so the story went.
I took a tour of the FBI eons ago. I believe they had some cancelled $100,000 bills on display. If not the 100K notes, they were $10,000 bills.