OK this one is hard not to love. I rolls around the yard, attacking things with a loud horn and a water cannon. It looks very much like a large scale version of our normal table top robots. Do check this one out.
While surfing the Web, I came across this robot named Ernie. Ernie is REALLY big. I thought the article on him was quite good as it spelled out some of the problems associated with make a large robot. Enjoy.