you're holding a handkerchief. Show it from both sides. The ends of the scarf together in the palm of his hand over your mouth and blow into it. Gradually, the scarf will finish, will grow in size and eventually will "turn into" the ball. Demonstrate pressurized handkerchief, and then pierce it with a needle.
How to prepare such a focus? Take two identical scarf size 30x30 see you Put them all together and stitch on all sides. In one of the corners make a small incision. Put down a balloon, his pre-stretching. The neck of the bulb, remaining outside, fasten the thread. Showing handkerchief, cover your hand its a secret area.