This a just a small robot, modeled in Blender, rendered with Blender Cycles using simple materials and a little compositing. Hope you find it useful :)
OBJ (OBJ, filesize: 1.04 MB), BLEND (Blender, filesize: 178 KB), 3DS (3D Studio, filesize: 245 KB), DAE (Collada, filesize: 1.8 MB), FBX (Autodesk FBX, filesize: 1.73 MB)