So you love decorating eggs? You are going to have an easier time doing it with a motorized solution. Take this LEGO Egg Decorating Machine for instance. Build using a LEGO Mindstorms EV3 kit, this Egg Bot can print 7 different patterns onto an egg. It uses one motor to raise or lower the marker and another to move it back and forth. There is also a motor to turn the egg.
This egg bot is pretty easy to use. Once the program is running, use the left/right buttons to scroll through the available patterns. Set up your marker and egg, and you are ready to go. More information about this project is available on JK Brickworks’ website.