drawdio - a pencil that lets you draw musicNow you build one Attaching to a Pencil Hardware notes for attaching to a mechanical pencil: note 0, note 1, note 2, note 3 You can also jack into the graphite on a regular old wooden pencil using a thumbtack, screw, etc. with some aluminum foil or whatevs to connect to Mrs. Human (it's as if someone designed wooden pencils just for this purpose with a graphite "wire" running right up the middle)
