Just did a little research and apparently polyurethane lacquer is considered food safe (once dry, of course). I may have some on hand, so I think I’ll try sanding one or two of these and coating them. I’ll do some more research and see if there’s a particular brand or type that’s recommended. If I end up doing this for all of them, I’ll have to raise the price to cover the cost and time involved. That may make it hard to compete with the new old stock ones that are still out there, for now. I don’t suppose Hohner is still making these?