Quick Change by Steve Dusheck

A very visible transformation of a half dollar in to two quarters. At the conclusion of your favorite coin routine, you explain to the audience how easy it is for a magician to manipulate coins. "Suppose we were to isolate half dollar." This said, you remove a bulldog clip from your pocket and clip the half dollar inside. Your fingertips hold the handle of the clip. Have a spectator hold out their hand. On command, you release the coin. Instantly and visibly the half dollar turns into two quarters that fall into their hand.