It’s not the pencil that draws, it is your hand.
Whether drawing lines or inscribing words, the act of making marks lures ideas into the physical world. Hands perceive and reveal things that our eyes and conscious minds may never know. We discover things about ourselves and our thoughts by engaging the hand in a mark-making process. – http://www.asbworkshop.com/home1.html
“Unlike the human body which is composed of only 18% carbon, Agelio Batle‘s latest project is produced from 100% of the semimetal material. The work, titled Ash Dancer, is a life-size skeleton that acts like a very large pencil. When placed on a custom made high-frequency vibrating table, the bones of the skeleton rub marks onto the surface, slowly creating an outline of its own form. The more the work rubs against the table, the more of itself is left behind, slowly transforming the graphite from sculpture to abstract drawings which Batle refers to as Ash Dances.” – http://www.thisiscolossal.com/2016/11/a-life-size-graphite-skeleton-that-vibrates-to-draw-itself-into-nothingness/