Here are a few robots from Dr. David P. Millers website dpm.kipr.org.
FANG an indoor software testbed for a Mars rover prototype
Robby a big outdoor Mars rover prototype
Tooth NASA's first micro-rover prototype
Rocky A series of prototype Mars Micro-rovers
Scarecrow the only transistor free robot ever to compete in an artificial intelligence contest
Tin Man A series of robotic wheelchairs
DRIP a supercheap AUV
BYO-bot an inexpensive educational robot/kit
See http://www.amerobotics.ou.edu/ for some more recent projects.
Visit dpm.kipr.org for the original content and photos.