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Jay writes – “For those of you unfamiliar, Thinkgeek sells a device called the “mind molestor”. the idea is simple. You hide the device in the home of someone you loathe. It then emits a beep once every 3 minutes until the battery dies or the victim burns their house down to stop the relentless beeping. Cool concept, right? Sure, but at $25 a piece its not exactly something you would want to leave behind. They dont even include a battery, But i did some figuring, and adding in a battery would just about double their manufacturing costs on the device. Thats right, This thing shouldnt cost much more than $2 to mass produce.” [via] – Link.

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HOW TO – Make a sonic grenade – Link.