plasti dip or rustoleum/krylon for plastic work great. the good part about plasti dip is that you dont need to do much prep work aside from wiping off the valence and you can peel it off if you need to later
Agree ^ I just plasti diped mine along with the badges and it looks great. And if anything ever happens to it or you just dont want it anymore it comes clean off with nothing but your finger.
That's Plasti-Dip... definitely recommend for the same reason's everyone else is saying. Easy DIY, took maybe 45 minutes, when 95% of that time was waiting between coats. It's easily removable, but I've had mine on for almost a year and through the winter and it's held up great. A can costs maybe $8 at most.