Create drawing robot with 6 plastic printed parts, 2 micro servo motors, a rubber band and a pencil. See the design iterations further down the page. It now has 3 axes with 8 parts and can use WaterColorBot's code.
Sometimes a game can take place below the surface, and Rob Hawkins Hobby has built a stunning table that highlights that very principle. Check out this gorgeous mine tunnel table he's built for Outlaw Miniatures' Wild West Exodus.