Build Your Own Gotcha Gadgets comes with a multifunction electronic circuit, wires, and sensors that kids can use to build a variety of pranksterish devices: A cookie jar that sounds an alarm when the lid is removed, an electronic whoopie cushion, an intrusion detector, a fake lie detector, and more. Once you try a few projects from the book, it wouldn’t be hard to come up with other ways to use the components, both mischievous and mild.
Build Your Own Gotcha Gadgets
by Ben Grossblatt
Klutz press
2015, 32 pages, 0.5 x 10.2 x 12 inches (paperback)
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