Tweeter Pod ?

I was thinking of building some fiberglass tweeter pods either on the pillars or on the mirror triangles. What I was wondering is after I sand them down and am ready to paint them, how do I get the factory texture back on the parts? Is there a special paint you can buy or what?

Iam purdy sure there is a paint made for it..not sure whats its called but to give u some hope..there is just gotta find it..lol