While most Egg-Bot style machines draw complex geometric patterns, I quite like the randomness and layered colors of this drawbot. The maker Curtis Swartley lists the components used to build his machine,
Arduino Mega, two Uno’s, two motor shields, a couple of servos, a couple of stepper motors, a few limit switches, and a Sharpie marker = Random Pattern Easter Egg Machine
This was originally posted over on the Make: Forum on Google+. Feel free to post your projects there and you too might get featured on the MAKE blog!