The magician shows an empty metal tube and a pencil to viewers. Insert the pencil into the tube and close the tube with a stopper. The closed tube is passed to the spectators. Prompted one viewer to open it. Opening the tube the viewer found, to my surprise, that the pencil has become a smaller and colored pencil.

 

• Instead of colored pencil or smaller you can bring up a card, a cigarette etc ... think how many gags can get out of the mind of a magician.