How about making them of plastic? Or paper? Or getting rid of all coins save the dollar? Like Mexico’s coins made of Aluminum
I mean .. a tattoo made with invisable ink or something that could be scanned at the store?
Or maybe a micro-chip implanted in/under the skin?
Just a (frightening) thought.
I’m a huge proponent of plastic. Someday everything will be made of it. I never ask for paper bags:) And it’s easy to produce out of stuff that is almost worthless. Counterfeiting it would be no less difficult as well. In short, I have no problem with plastic money (a slightly different take on what is currently known as credit cards).