Do you remember playing with the Spirograph as a kid? You know, the funny gear cogs you used with a pen to create endless drawings of mesmerizing quality?
Well this pretty little bot accomplishes virtually the same thing, and it's really not that hard to build. If you are a Lego fan of any variety, you will probably have all the pieces you need. The one exception may be the electric motor (Power Functions) and the "Turntable" which are slightly more rare parts.
> Entertainment (both building and watching!)
> Decoration (hand-made cards, wall decor, etc