Pencil sharpeners are an essential tool for students of all ages, artists and pros in a wide range of technical fields. A dull pencil can doom good work, but thankfully, that’s not a fate any ...

Created by Mike Moyer, the DIY nitro sharpener is made out of an RC toy car engine, pistons, and other parts, as well as the metal head of the type of old-fashioned manual pencil sharpener that was ...