An attachment that can added to a lawn mower to have it automously mow the lawn using gps to track its position. --
Other robots from Synthiam community

DJ's Master Blaster Robot
DJ Sures named this robot Master Blaster. Dont ask us why, he still doesnt know. But hes pretty simple and is remote...

Sudo's Shogun V2
just a quick update while I have time: Ive redone shoguns knee design, and i have to say, this is probably my best...

DJ's I Shall Call Him Norm
Norm is a very fitting name, no?