Replicating spheres

The magician shows one ball and the next moment he multiplies it and shows two balls.

He then swings the balls back and forth between his fingers until he reveals three. After they appear and split, the magician ends the show and proudly displays four balls at his fingertips. To add even more class to the show, the magician makes the balls disappear one by one.

Smiling and proud of himself, he receives the well-deserved applause when he shows just one ball, as he did at the beginning.