Props: A glass tumbler, hot water, few cellophane wrappers.
MAGIC:
Have you ever seen freezing hot water? You might not have seen or even heard of it, but here you can produce ice instantaneously in a glass of hot water. Take an ordinary glass tumbler and pour hot water into it. Cover the brim of the glass with your right hand and shake the hot water. Utter the magic word 'Zee Boom Ba'. The magic word works! A big ice piece is formed and floats in the glass.
SECRET:
Though this trick appears to be a marvel, the secret is not that big. Secure a few pieces of cellophane wrappers (you can obtain them from packagaing material like cigarette boxes, etc). Squeeze them into a small ball and hide it in your right palm. At the beginning of the trick put your right hand over the glass slowly drop the ball and shake the glass immediately. The ball inside the water looks like a lump of ice and creates an illusion. After the show, give the glass to your assistant to take away immediately.