This weekend I sprayed the skirt with "GM Gunmetal Gray Metallic" aerosol spray paint and I'm pretty pleased with the results. I also sprayed some ping pong balls with a flat black paint. This is now really starting to look like a Genesis Dalek.
I also created a fender from some 3mm MDF with 1 inch wide strips of hobby wood glues around the edge. As you can see from the photo, I have made a start on attaching the electronics to the underside of the fender. The holes in the fender edge are for some Maxbotix EZ1 ultra-sonic sensors for detecting obstacles.