So I just built three Photo Eye Expression Pedals for under $25. I use mine with my XO Worm and it works great. Takes very, very little pedalboard space, too. Here’s a link to deviever’s site, where I learned to make them:

http://www.deviever.com/forum/viewtopic.php?f=79&t=519&p=8781

Instead of ordering the jacks and clear covers from mouser, I just found the same jack at Allied Electronics, and simply didn’t get the cover (it works fine without it), so I only had to pay shipping once. As for the enclosure, I just bought a 3x2x1 ABS plastic box from RadioShack for $2.29. A little drilling, a little glue, a little soldering, and some stenciling and spray paint, and you get this:

In retrospect, it would have been REALLY cool if I had made the photo eye the eye of the marshmallow stencil. There’s always next time!

Oh, and if you want a good picture to stencil, here:

http://www.missginsu.com/images/peep.jpg

You don’t even have to resize it!

Oh, at deviever, they say that you need to use a stereo cable, but before you buy one, try a mono cable, it might work just as well. I found that out the hard way.