Blowing Smoke For fun or science. And it"s not actually smoke, but a fog created the same way they do for movies and heavy metal concerts. * The Wizard Stick is a fog-producing wand, 10" long on a 4-5/8" x 2-1/4" base, and comes with an instruction manual for science experiments and special effects, including making wind tunnels and a vapor-ring blaster. * Also good as a household draft-finder. Takes (6) "AA" batteries, not included, and comes with a 3-ounce bottle of non-toxic "fog juice," enough for many hours of fog.