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Much like it's predecessor, the eco-friendly Pencil Printer II by designer Hoyoung Lee is a revolutionary device that uses the lead shavings from one's pencil as toner. This particular printer, however, is meant to be even more efficient on resources.

I must say, coming across the eco-friendly Pencil Printer II couldn't have come at a better time as I am about one day away from throwing my current printer on the street. The device pictured here even lets you erase the print so you don't have to feel guilty about wasting pages of paper. This is easily one of the coolest green devices I have come across yet.