HAHAA!
I would save up my change from collecting bottles along the beach and spend it on stuff in a small catalog from "Top Hat Magic Company" someplace in Illinois. Some of it was clever stuff, others were too cheezy to use. One of the clever ones was a rig that allowed you to take a dime from someone after they'd put an identifying mark on it, thank them for the dime as you put it in a pocket. Then hand them a small box bound up with four rubber bands holding it shut. Asking them to unwrap it, a matchbox was Inside that and inside the matchbox was a small red bag held closed with another small rubber band. Opening the bag revealed the very dime they'd handed over earlier. That one confounded a lot of folks.