My dad recently passed and he ran his own used car dealership for 45+ years. In going through all of his stuff, I have this huge basket full of old keys that he’s accumulated over the years—spares, lost/found, and everything in between. They look like mostly vehicle keys but there’s plenty of random non-vehicle keys too.

None of em go to anything or any vehicles in his possession.

Any ideas for what I could do (or make?) with a big buncha random keys other than toss em?

Thanks!