Effect: Four coins are placed in a stand. An inverted tumbler is set over a small glass on a pedestal which is held in your hand. You drape a handkerchief over the glasses. A coin is removed from the stand, thrown, and is heard to fall into the glass, apparently having penetrated the handkerchief and the tumbler. This is repeated. The audience appears skeptical, so you remove the handkerchief and show the two coins in the glass. Another coin is removed from the stand, and this time with no covering over the glasses, is actually seen to have passed through the tumbler and fall into the small glass. The visible penetration is repeated with the fourth coin. If desired, the complete effect may be performed without covering the glasses.
There is no need for any manipulation since the clever apparatus does ALL the work.