Last night I built a DEP-1 kit from Gils Geiskes (http://gieskes.nl/effects/?file=dep-1)
Not strictly a stompbox, but I might put it in an enclosure...
Very fun, incredibly glitchy/noisy/fuzzy effect
(http://distillery.s3.amazonaws.com/media/2010/12/21/91a8b86402da4453b1b6538315ab1ac9_7.jpg)
Quick demo video: http://www.vimeo.com/18033250 (http://www.vimeo.com/18033250)
Yes, build it as well.
I use it for a.o. guitar.
Very nice kit!!
Marc
PS by the way it is Gijs Gieskes
this is really great! kind of reminds me of earlier monstrocities I made with the very same microcontrollers. though this in a much more pro package ;D
I didn't expect the low sampelrate to go so well with the electric piano! especiaally modulated