The latest addition to our family: A WowWee Robotics RoboQuad.

http://www.wowwee.com/en/products/toys/robots/robotics/robocreatures:roboquad

He was rescued from a second-hand shop, where he wound up due to a broken leg.  The left-front leg wouldn’t stop spinning, but after some minor home-surgery (a lever that pushed against an actuator had jumped out of place, so it just needed to be put back in place) he now appears to be fully functional and adjusting quite nicely to his new home.