As helpful and sometimes necessary peepholes can be, if they must be as dangerous as the 'No Finger Zone' one, I'm not sure that I want one--or be in any area that calls for one. Featuring a steampunk design with razor-sharp blades, at least you know that someone would never try to poke through the peephole for fear of losing a finger.
Showcased at Maker Faire, the 'No Finger Zone' was probably one of the more interesting contraptions made. To see it in action, watch the video above.
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