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pencil sharpeners
Does This Mean Power Drills Are Allowed In Classrooms Now?
The Camera Pencil Sharpener Is Awfully Cute
DIY Tesla Turbine Pencil Sharpener Is Pointlessly Dangerous
Using a CD jewel case, some magnets and a 12-volt air compressor, you can build an elaborate Tesla turbine sharpener for pencils you probably don’t even use. Oh, did I mention it could kill you?
























