Slight of Hand

Using 3 walnut shell halves and a dried kidney bean, place the shells (open side down) on a surface.  Place the kidney bean under one of the shells.  Select one guest to act as "dealer" and move the shells around while the other guests watch.  The objuct of the game is for the guests to keep their eye on the shell that covers the kidney bean.  The task of the "dealer" is to move the shells so quickly, that the other guests lose track of which shell covers the bean.  One at a time, allow guests to guess which shell covers the bean.  After each guest makes a guess, have the "dealer" move the shells again.  Guests that guess correctly go onto the next round.  The guests that guess incorrectly are out of the game.  Continue until only one guest remains in the game and is the winner.