Sorry for the bad pics, i was having difficulty with my camera but you can get the idea.
here are the centercaps I customized from my iforged takeoff caps.
the surface s rounded so I first sanded that down flat, than glued on the silver colored center caps from ebay (they usually use these for the steering wheel)
I already had the crest masked off, than I painted the cap black to match my wheel centers.
I still have to polish these than will put a few coats of clear.
redblur, try boothedesign.com or google ralphe boothe, i think he doesnt have the silver version anymore but still has crested caps for iforged hre etc...
i will definitely remember to post pics when the caps are on

 

Beautiful job on the caps. We used to sell the Ralph Booth caps, but he has since been in a battle with Porsche, and has run out of the silver crests.

 

Ive painted my OEM center caps black on my 20" Sport Design Wheels on the Cayenne

 

Nice job Raffi...looks great!