invention

Girl bounces on mattress. She then showcases new mattress inventions…

Man wears motorized roller skate contraption on back and roller skates…

Helicopter propeller attached to a speed boat makes the boat fly over…

Man attempts to fly manmade flying contraption off of a runway but…

Man tests a helmet by letting a group of football players hit him with…

Man with roller skates and manmade wings attached to his arms attempts…

Man with bi-wings attached to bicycle attempts to fly. Flying…

Demonstration of automatic speed bump invention that pops up from the…

Man straps roller skate contraption to feet and pumps up the skates.…

A very busy man answers several telephones. Uses inventions meant to…

Man with large homemade wings attached to his back attempts to fly by…

Woman demonstrates finger devices designed to let you smoke a cigarette…