Hello, I am looking for an easy/economical way to Paint/Dye/Darken a plastic Wheel center cap. (Pic below) The cap is made of plastic and painted with a chromish looking coating. I'd like it to be black or at least much darker. I am told I can pop the center cap out w/o breaking it. Any ideas how I could do it simply w/o too much hassle. I don't mind taking them to a professional service if it were cheap enough, say less than $60. Any suggestions appreciated? Sorry if posting an auto related question is a forum faux pas. Thanks.