Not on the Connie wheels, but I did go the other way on the Wee-Strom last time I changed tires. It had black wheels which are not to my taste, and I painted them silver. Go figure. I just did a quick buff-n-scuff with Scotchbrite and acetone. Let dry for an hour and warm up in the sun, then shot with some Krylon grey primer, and Krylon silver enamel. That was about 1,000 miles ago last summer. I don;t expect it to last as long as a good quality automotive paint, but it cost me $11. I can touch them up anytime for almost nuthin.
pic below