This is an interesting hack of a “voice changer” kit. I really like the sounds so far, and I think know it can be hacked a lot more. It would be cool to stuff this in a project box and add a few more hacking controls.

More about Pitch shifting with a “Voice Changer” kit

In the Maker Shed:
Makershedsmall
Discoverelectronics Kit Crop
DIY Design Electronics Kit