Sharpie is reinventing the pen with a pencil. The “Liquid Pencil” writes as smooth as a pen and is fully erasable like a pencil for up to 3 days. Then the magic happens. The ink is made from a liquid graphite that turns permanent like a marker after 72 hours (or 24 hours if you read the description over at Office Depot). Either way it’s a combination of a pen, pencil and marker which I am unofficially dubbing the penmarkcil. Anyone try one of these out yet? How did it work for you?