The Essel Magic Sponge Balls To Die Black and Yellow by Ronjo M9

 

You show a different color sponge ball in each hand (one yellow and one black). The black ball is a little smaller than the yellow ball. Place both balls two sponge balls, one yellow and one black -- one in each hand. The black ball is placed over the yellow ball into one closed hand. He waves his other hand over the balls. When the closed hand is opened, it is seen that both balls have now melded into a solid yellow die with black spots!