The Femorii Delay is Effdub's/Culturejam's Neptune Delay, which uses a vatrol and a momentary switch to warp the time control on a delay chip, giving you real-time manual control over the modulation. The heart of the circuit started as the Deep Blue Delay (a pretty basic PT2399 delay). Effdub also posts as Culturejam on the forums. If you like this project, he might have some fabbed boards left.
This was meant to go in a larger box, but I'm never one to use anything larger than is absolutely necessary. :)
I've tried to show how, with the mix low and the feedback increased, the modulation can be used to create interesting background textures. I also very briefly near the end show how well the pedal takes boosted input and distortion (using a fuzz).
About the name: The Femorii were the Irish sea gods. They were described as "violent and misshapen," which I thought was a good description of what the warp button does to your signal.
My website, jonpattonmusic.com, has pictures of some other things I've built, or check out my other videos for demos of many DIY designs.