I stumbled upon this by accident... and I was absolutely thrilled by what I found. This easily-made
gimmick can be used to create an amazingly creepy effect. I work it in along side other "magic
marker" (pun intended) effects, like Little Door by Roddy McGhie and Miranda and Montoro's Sketch.
The video explains how to make the gimmick, and how to perform the effect... but in order to be
truly effective, you must use your imagination to provide some story and substance. With the right
presentation, this trick could be a reputation-maker.