Years ago, Al Wheatley created a wonderful version of the Cups & Balls, using only one cup and one ball. The Chop Cup has since become a classic of magic. It is a large aluminum cup, to take a big load. The routine has a little crocheted ball magically jumping from your pocket to under the cup, then back again, and so forth -- until in the end it changes into not one but two large rubber balls or apples, etc.. Marvelous entertainment.