Silk To Cube

The magician shows the audience a colorful cube and red silk. The silk is squeezed into his hand and the cube placed into his pocket. Instantly – the examinable cube reappears in his hand. The silk is found in his pocket. (A self-working transposition.) Or… Silk poked into your fist morphs into a solid, one-inch six-side examinable cube. Or…A sponge ball is placed into the hand and changed to a single solid, examinable one-inch cube. (Use your own 2-inch sponge.)