Sorta:
(http://i53.tinypic.com/5wb5o7.jpg)
(http://i53.tinypic.com/f3w3di.jpg)
(http://i52.tinypic.com/szczmp.jpg)
Excuse the Blurryness of some images.
There is JUST enough movement to clear the LDR, but I like it's control over the feq., mostly because, with the build I did anyways, there's no gating for the carrier.
It works well though.
Cool! You should check out hall effect IC's if you like making expression pedal effects, basically they will generate an analog DC voltage based on how near they are to a magnet.