I used Eastwoods's polishing kit to polish these rims. I first used a commercial paint stripper, then the various abrasives included in the kit to get a satin finish. Next 2 grades of polishing compound were used. I have spent about 6 hours on each wheel.  They have only been through 1 winter and are holding up very well.

I am using a center cap from a late 80's LX Mustang