Any suggestions on how to cover how a scrape about 1/2 on the black plastic area a few inches to the left of where the REAR license plate is attached? It's not the on the paint portion of the car, it's that black plastic part. It's killing me having to see it every day when I use my car. I want to cover it up but, I know Sharpee marker won't do it besides adding a line. Help Please..