Immature humor becomes science. What an utterly irresistible combination!
Build electronic gismos to play 20 tricks! What results from that? A confused cat, watchful eyes from siblings after you wire the cookie jar, prank precautions taken by friends. Cross the fun of hands-on science with a whoopie cushion, and that's exactly what you get!
Gotcha Gadgets, a set of customizable, constructable electronic gizmos is four-star hootenanny. A book chock-full of games, pranks, and jokes - and how to make the most of them.
Follow simple instructions to make a door alarm, motion sensor, light sensor, or push-button sound machine, and then program it with one of four funny sounds.
4 gadget covers
2 doorbell hangers
2 door alarm hangers