The magician shows cone to be perfectly empty. He then introduces a small rubber ball that vanishes and appears under the cup. With a little sleight-of-hand, the ball can vaish and appear in other places too. In the end, a giant ball makes its appearance! This trick was a staple back in the 1960's and 1970's, and has long been off the market. We got a few from an old magic shop that recently went out of business. If you are an old-timer (or even a "young timer") who wants to perform the original predecessor of the modern day Chop Cup, get it while you can! 0001CBMHOMINGBALL