Blogged from The Burnkit 2600 — Circuit Bent Instrument Gallery — is this awesome hack of a retro Star Wars toy with such modifications as input and output jacks, mic/input selector, pitch and distortion controls.
This Darth Vader pitch-shifting device makes your voice sound like a Sith Lord’s. The Dark Side Box creates great, growling, pitch shifted sounds of whatever source you input. It has three Darth Vader samples, tiny mic, speaker and volume control.
The Dark Side Box was used to process the analog sounds of an old Univox drum machine. The result was really distorted; I especially like the pneumatic piston-type sounds that were added in the second half of the sample.
Check out the MP3 sample here:
Dark Side Box