Heat-seeking gun – the Nerf kind
This toy version of a heat-seeking machine gun was the brainchild of Rick Prescott. It won MAKE Magazine’s Gadget Freak Design contest. Prescott joked he might mount it facing the entrance of his cubicle at work to “speed interaction with less desirable visitors.” When I want to deter unwanted walkers-by, I just put my headphones on.
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