This suggestion is simple. It's a sign that functions much like the easter egg chests in the tutorial. It says [CLAIM ONE] on it and upon clicking it you will receive the item it has inside of it. After claiming it, you wouldn't be able to claim it again. This would be useful in a place like a casino where upon your first visit you receive one free play, and then the next ones must be free. Or where you could gain free admittance to a shooting range or rollercoaster once, then must pay for the next. Please leave feedback below. Thanks!
I'm not quite sure what an Easter egg chest is, took the tutorial about a year ago, but this sounds like a good idea. This would help with a lot of the things you mentioned, and could even be used in shops as like a one time freebie to draw in customers.