jonheld,
Sorry for the delay in getting the picture posted. Photobucket still not working for me. Found a way to post it here using the site as the host.
As previously stated, the cap pictured was done about 5 years ago, so not as fresh looking as when first done, but you can get an idea of the color.
I stripped the caps (glass bead blasted them), then used a plastic adhesion promoter, then sprayed on the base color (silver). Let it cure overnight. Used a gold spray paint (sprayed into the cap) so I could dip a small artists paint brush into it let it drip into the grooves of the Toyota emblem and the circle.
Once that had dried, I sprayed two coats of satin clear coat on it.
And while we are in the tire/wheel/center cap area.....IF you have the factory aluminum wheels the easiest way I have found to clean them (without scrubbing) is to use Oven Cleaner (yes oven cleaner) on them. Just spray it on (don't get it all over the tire) and wait about 2-3 minutes (no more) then rinse off with a water hose and spray nozzle. Instant clean!
It won't take off road tar........ but oil, dirt, brake fluid, brake dust, road grime....GONE!