Sandscript - Automatic Sand Drawing Machine from ThinkGeek - YouTube
Sandscript - Automatic Sand Drawing Machine from ThinkGeek - YouTube
Sisyphus - Raspberry Pi
Sandscript, A Device That Uses Magnets to Let You Control Steel Balls and Draw Patterns in the Sand
Amazon.com: Sisyphus Industries
Sandscript Automatic Sand-Drawing Machine | Sandscript Automatic Sand-Drawing Machine | By Taras Kul | Pop this open. Looks like this thing is magnetic field thing and send over here and there is