To change the color of discs, stacked in three columns of different colors by just covering them with a handkerchief.

Props: 27 Wooden discs, each 8 cm in diameter and 2.5 cm in thickness with square holes cut through the center.

Adv. Pre: Three sets of three discs each are painted in three different colors i.e. red, blue and white. And six sets of three each painted in double colors (as shown in the illustration) i.e. red and blue: blue and white: and white and red.

Put all the three stands in a tray with nine discs in each stand in such a way that every stack seems to have a single color. But if you view from the back you would find all the stands with discs in mixed colors.

Cover all the three stands with a handkerchief and apply your magic formula over it.

Now comes the time when you have to move very cleverly. Make such a move that the front side of the tray goes to the back side and its back comes in front. For this, you can keep two tables for the show and while displacing the tray from one to another, this move can be applied.