Effect:

When you scream at a coin, it gets so upset it bursts into tears!

Preparation:

Conceal a wad of wet cotton or tissue between the first and second fingers of your hand.

Procedure:

Borrow a coin from spectator and place it directly on top of the tissue (without getting seen). Pretend to scream at the coin. Now squeeze the coin and the tissue together and water will drip from the tissue. It would seem like the coin is crying!