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.

Interesting eye candy, a card bulging up in the middle, as a quick bizarre moment, it is good. If I build it and play with it I may find more practical uses. Interesting but isn't a real effect as much as a weird curiosity.