If you can find a good parts store, they can get them. I bought some Pontiac rally wheels from the junkyard that had plastic centers that I had never seen before. Fortunately I saved a couple lug nuts. The lug nuts have to be exact to hold the caps on tightly without cracking them. He whipped out a catalog that had thousands of lug nuts and it had to scale profiles of the lug nuts. I just lined up my lug nut to the profile for an exact match. Hope this helps,timo22
