I wonder if non-Amiibo nfcs can be stored to those old Amiiqo devices and the like (think it was rebranded to N2 or something like that). Cuz that could be an option too, you can store like 200 different NFCs on the thing, though it's annoying to cycle through each NFC as there is no screen, just a button that you have to hit over and over. But an option all the same, but buying NFC tags might be more preferential, especially if you go all out with the right kind of printer and make them into playing cards or those small thicker credit card-like pieces.