Build Your Own Gotcha Gadgets

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Klutz Build Your Own Gotcha Gadgets is where science meets immaturity with a set of customizable electronic gizmos, along with a book of games, pranks, and jokes. It’s like a science fair project with the soul of a whoopee cushion.

  • 32-page book of science and sneakness
  • 1 electronics module with speaker, LED, photo detector, and contact switches
  • 1 alligator clip
  • 1 gadget dock
  • 4 sheets of gadget covers
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