Eggbot[edit | edit source]
This device is useful for drawing on round objects. In order to make it work, you use an Inkscape plugin to interface with the Eggbot control board over USB. It can be a little tricky to get right, so please ask someone who knows.
You can draw on pingpong balls or eggs (recommended to blow out the yolks or use hardboiled).
There are many designs on the Eggbot website as well as discussion and information on how to use the hardware/software.