When you absolutely, positively have to have it by tomorrow, look to… ZoomRP. A division of Solid Concepts, the company is offering really fast rapid prototyping. Upload your STL file to them by 5pm, and get a rigid, plain white, 3D prototype in the mail the next day.
They use a PolyJet system that builds parts layer by layer, 16 microns at a time. For times when accuracy, detail, and surface finish are critical, the system should provide excellent results for items measuring up to 5” all around. The maximum size available is 19.3” x 15.4” x 7.9”.
So fire up your CAD software and get to designing those space-robots. You could build yourself an army by tomorrow. Don’t take a chance of letting that project go to waste. What the world needs now is more space robots. Get to work.