What is "chink-a-chink"

n. A magic trick where four small items appear to move around a mat with just the wave of the magician's bare hands.

Chink-a-Chink is a simple close-up magic trick in which a variety of small objects, usually four, appear to magically transport themselves from location to location when covered by the performer's hands, until the items end up gathered together in the same place. Variations, especially the Sympathetic Coins, have been performed since the 1800s. Popular variations are Shadow Coins, Coins-n-Cards and Matrix. A variation using playing cards as the objects is known as Sympathetic Aces.