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Level up your prank game with simple, elegant science.
This set includes 4 gadgets and 9 possible sounds to play a total of 20 dastardly, unexpected tricks on the unsuspecting world. The gadgets, (motion sensor, light sensor, door alarm, and push-button sound machine,) operate together with the sounds (danger alarms, screams, sad trombones, or flatulence) for up to 36 combinations! The 32-page booklet explains exactly what to do. With an electronics module, LED, photo detector, contact switches, alligator clip, gadget dock, and double-sided gadget covers, you've got everything you need to lay the smack down on little siblings, friends, or parents with these harmless and creative pranks of the 21st century!
Eleven year old boys are still boys rather than teenagers. A serious outdoor kite makes a great present for an 11 year old, but if they are getting seriously into style, a piece of room decoration might be welcome. Construction kits that involve the opportunity to build cool, outlandish models are popular at this age.