Dirkus writes -
Edmund Scientific is running a sale on the PicoBotz robot kit. They’re knocking it down from $99 to $77, which isn’t bad. The kit, once assembled, operates in three modes: obstacle avoidance, sound control, and line following. With the addition of a Windows PC, you can use the included serial cable and software to program the robot for other tasks with a set of 180 instructions. Sounds like a good gift for the robotics geek in your life, available for only $77 while stock holds out.
PicoBotz- Build-it-yourself programmable robot – Link.