Adam Savage's Hovercraft for Kids powered by Leaf Blower

Mythbusters' Adam Savage shows us how to build a hovercraft using a leaf blower. He writes: "You can screw a chair onto the disc for seating, using wooden risers under the legs if the leaf blower needs more clearance. In any case, keep your center of gravity as low as you can. The lack of friction can make the hovercaft slip out from under you quite fast."