If you have scraps of pencils and eraser and a great desire to save paper and thus save the forest, then this concept is for you. Pencil Printer created by designer Hoyoung Lee is not only for printing text, but also for its erasure. The trick in this concept is to use graphite extracted from scraps of ordinary pencils instead of toner. The printer has two “exits”. First one is for printed pages, the other one theoretically is for blank pages. Quite unusual eco concept.