For any of you guys looking to paint something like this, I can recommend the following company:
Touch Up Paint and accessories | AutomotiveTouchup
I've bought from them a couple of times and recently used them to pick up a couple rattle cans to paint the 110 outlet cover, the hot water heater cover and the cover under my propane door. The match is perfect, and it would work perfectly on something like these fender fillers from Jeremy. After you know your vehicle's color code, it's a super-simple process.