ive been doin that for ages...i even made lil rego stikers
i jus made the plate in MS Paint, being in australia, our plates r simple
i startd playn with the windows a while ago, on my monaro...put a roll cage in (paintd sum straws silver an glued them in)
put in sum fly screen for a race net, paintd a piece of flyscreen silver an put it in a cut out in the bumper as a cooler..
there's heaps of lil sik stuff u can do, i noticed a few guys on here have xhaust pipes, pretty tuff..
i jus drilld out a cone an slid it over my tune pipe an had it as a flared tip...