1. Before doing this trick, make sure you have an empty matchbox opened halfway. Wedge a coin between the end of the drawer and the cover. (Do this in the back of the matchbox where your friend cannot see)

2. Hold onto the matchbox tightly, so the coin doesn't slip back into the box, and show your friend the matchbox is "empty".

3. Now close the matchbox, and the coin will slip in.

4. Open the matchbox back up, and show your friend the coin that "magically appeared" in there.