Felix Bänteli and his friends from the fabulous kulturbüro
in Luzern made a very cool, solar powered, wristwatch-like-synthie. I redesigned their version. It has now a nice product-like finish without loosing it’s geek-factor.
It has a tiny solar panel, two buttons for beat and melody, a piezo (simple loudspeeker) and a minijack (headphone) out… and it is controlled by a AVR ATtiny13.
Make your own! The hole documentation on thingiverse.com
And of course, its made completely in the FabLab Luzern