Upcycle a thrifted mirror or ornate frame as a display for trading pins! I think it would be cool to have a black one like this with haunted mansion wallpaper fabric in the background. Or use outdated lanyards as the background.
This Disney Pressed Penny display was created by Mr. Hassler - This one is about 200 pennies. Just use a strong craft clue to hold them in place on a piece of colored foam core. This frame is Love squished pennies!