Sorry about the delay. Doing a blog in the midst of being homeschooled by my mom is hard to do.
I think that from now on I am only going to have time to write during the weekends.But low and behold the Skitterbot. Skitterbot is a vibrating robot with only a motor and a battery. A piece of an eraser I  put on the motor shaft off center gives it the vibrating needed to jounce around on the floor. It has the same principles as a Hexbug Nano.
Please comment on any good robots you have seen.