Today I built a fun little device called Drawdio. It is very easy to built. It took me less than 15 minutes to finish it. I made it predominantly for my daughter’s birthday party (she’s 5). She thought is was nice but her girlfriends weren’t impressed very much.
Anyway, it is a pencil with which you can draw sound. My version looks like this.
Check out these video clips to see the Drawdio in action.
And even more creative applications…
You can find more detailed information and built instructions on the Adafruit website.