The only authorized version from the late great Steve Dusheck.
You concluded your favorite coin routine. Explain to the audience how easy it is for a magician to skillfully manipulate coins. Suppose he were to isolate a half dollar. This said you remove a bulldog clip from your pocket. Clip the half dollar inside. Your fingertips hold the handle of the clip. Have a spectator hold out their hand. On their command, you release the coin. Instantly and visibly the half dollar turns into two quarters that fall into their hand. Man is this strong!
The change to any two coins can be any two coins from any country so long as they are smaller than the half dollar. It is manufactured better than the original and has an incredible impact on people.
The change is instant and visible and requires no skill!