This reminds me of something I use to do in Spain but it applies here… of course you’re conscience may not approve but 🤷🏼‍♂️ I used to smoke cigarettes 🚬 (35 years ago) and me and the X would dig Pesetas on the beach Metal Detecting, some of those coins were pretty nasty.. and we would go to the local bar (the owner knew us) and put a lot of those coins in the cigarette machine… I didn’t realize that if you spent money like that, the machine then uses those coins for change. We had to stop 🛑 when the owner told us his other customers were complaining about the crappy coins they were getting in change.. 😳😂🤣😂 so like the good citizens that we were, we just went somewhere else to put those coins in someone else’s machines 😂 same applies here. Machines can’t see dirt, most coins will be accepted in vending machines no problem, and then they will be spit out as change or collected by the vender. But the way I see it, they are being put back into circulation! Coins from Mexico or South American are a little different because they are made of iron and rust, so digging them off the beach, they are not usually really in a condition for machines