you can get the stuff from
www.signcatalog.com they have all different types and colors and everything. on the side go to "vinyl for signmaking" and the cool stuff is at the bottom, the metal flake one is what i used. it sucks, but its cooler than primer and if you mess it up you can just stick another piece on. the 24x50 yd rolls that are like 89$ + shipping, that is plenty to cover a whole car with.