I made a bristlebot yesterday and I'm feeling very very pleased with myself. It's looking very ghetto but that's a motor and battery and switch taped onto a scrub brush. Kind of ridiculous but good for a few laughs and the kids enjoyed it. If you want to build one yourself, go here.
It's amazing how much you learn from doing something yourself, not reading about it, not talking to someone else about it.
The title of this post is a tad rude but I get semi-obsessed with Soulemama sometimes and wonder how she manages to write books, homeschool, knit, sew, blog, and never slip up and buy something at Target or have a kid who was obsessed with superheroes or who chomped on a pthalate-laden toy or anything like that. She is practically perfect in every way, but I don't think she ever built a robot, however primitive, for her kids, so I got her there.