RCA Voice recorders are fairly cheap and readily available. The one I used for this project was an RP5007 I believe, purchased for $5.00 at a second hand store. The bends implemented on this unit were all short circuiting of the Smart Media card slot. This was pretty much the only place that I could solder wire to as well. Of course there is no room for switches inside case, so external breakout box was used and all the wires were fed back through the opening in the case. The recorder itself was then super glued pretty hard to the project box. The sounds are pretty intense, lots of cool glitch loops, robotic sounds, and general Speak and Spell like glitches. I did record a video of the device being messed around with and there is an extensive gallery detailing the construction. Enjoy.