The instructions for Color Changing Paddle give you the basic effect and the basic move. What I (Steve Bender) discovered was that the size of the paddles made it somewhat difficult to do the basic paddle move. So I added a small piece of plastic tubing to the end of each paddle. For me, it then became amazingly easy to do a paddle move in each hand. Then I decided if I covered each piece of tubing with contact paper I could enhance my routine. So I covered one tube with white contact paper and the other with black contact paper.