Called the Imperial Crawler by designer Christopher Aleria, this interesting take on the AT-AT would have surely been immune to Luke's harpoon technique.

The rig is remote controlled and about as off road as an AT-AT model with huge chunky wheels could hope to be. Word is Aleria's been conscripted into the Imperial military and will be cloned accordingly for future builds.[Hobby Media via technabob, Image: Hobby Media]