Grab a cork, salt-shaker top, or any object you can wrap your fingers around. With your other hand hold a pen or straw as your "magic wand."

Ask your sucker to watch closely as you tap three times with the pen... And on the third tap, the pen completely vanishes.

For about 5 seconds they'll be fooled, until you turn your head and reveal that the pen is nestled in you ear. After the groan, you knock 'em dead: tap your fist three times and open your hand to reveal Tuaregs original object has completely vanished.