I'm not sure where you'd go to get it done, but it's definitely doable. All those badges on the car are chrome painted plastic, including the running pony on the grille. It's just a matter of wether it can be done non-commerically. I'd start with asking anyone you know who runs an online shop or sells badges, they might be able to point you in the right direction.
By the way, they do have metallic spray paint at hardware stores. The quality of a copper one I used was pretty crappy, but I had some luck with (dull) aluminum colored. These paints lose their finish easily, so you'd need a clear coat if you went this route, and of course do a trial run on something disposable.