Yeah, maybe the robot part is out then :-)
Maybe just a traditional windmill like one of these below, but then having the building part of the windmill be made of shiny metal. Perhapss the blades could be shiny metal too. ? Can you make that "shiny" effect?
http://www.angelfire.com/sc/soriluc/images/amstertraditional.jpg http://www.enweirdenment.org/pics/Europe2001/111-1147_IMG.JPG
I have attempted a chrome effect before and I feel without further training I won't match the pros. My designs are plain, and I like to merge text into the picture. I don't have good samples with me but here are two.
http://www.withmsg.com/1.gif http://www.withmsg.com/2.jpg
rather obscure, but the text reads to "pktw." if you like this style, yes I have one or two sketches in mind. If you'd like to blend some text in, the first letter maybe, I need to know that. Finally, if you want a vector file I probably won't be working fast -- because sadly I don't have AI. And I'm very unfamiliar with inkscape. What I'll end up doing is roughly tracing a paper sketch. You'd need to get somebody to smooth out the edges after that.
Right now, I can't really see how a windmill and a robot will go together without looking kinda silly (think propeller hat) or sadistic (blades), if they are merged together.