Japanese designer Akio Hayakawa has developed a fix for the wasteful feature common to all pencils—the graphite that runs the length of the entire thing, even though you can't use all of it as the pencil gets shorter and shorter. Around 20% of the graphite is eventually thrown away. In Hayakawa's Easy Pencil design, the graphite stops about two inches above the end of the pencil. Small quibble: a pencil really needs an eraser, no? These are my personal favorites.
Via Fast Co Design