Ten-year old Eric and his dad let us know about their amazing creation: an autonomous NXT remote control. The remote control controls a car without human intervention. (See first video below, as well as the first graphic below taken from Eric's web site).
Eric is also in the process of building the animals from Fay Rhodes' "NXT Zoo" Book. He improved on Fay's original skunk design, using different wheels and a bent beam to release the cannon, instead of using fish line as called for in Fay's book. (See second video below, as well as the second graphic below taken from Eric's web site).