Slush Powder lets you do the impossible! A small amount INSTANTLY gels 4 oz of water, appearently making the water vanish. Pour water into a styrofoam cup, pierce it with pencils or knitting needles, and the water vanishes. Play "three card monte" with "three cup monte!" Show three styrofoam cups, pour water into one, mix the cups, and no matter how closely they watch, the spectator can't follow the water. Dozens of ways to use it.