Some old lady in a 88 volvo ran into the back of my car the other day. The damage is not bad at all, just the right rear corner of the bumper is scratched into the actual plastic. Is there any other way of fixing this besides replacing the entire bumper? If not, then where can I get a cheap rear silver bumper? She said she will pay and since she was nice I want to help her out at least by finding the best deal I can. Thanks!