Magician shows a can with white polka dots on the outside. He pulls a black and white silk from the can and shows it empty. He puts them back and casts a spell. He then reaches into the can and says that the white silk has turned black and that the black silk has turned white. The audience doesn't believe him. They are both put back and the magician waves his hand in front of the can and VISUALLY AND INSTANTLY ALL OF THE SPOTS DISAPPEAR FROM THE FRONT OF THE CAN. The silks are removed and the white silk has black dots on it and the Black silk has white dots and the can is shown empty again. A great trick that makes kids scream but keeps them quiet at the end.