Would be a nice intermediate step, right after the illuminated oversized spoiler and before getting around to wiring up the underbody neon glow lights
Seriously, its your car, so whatever floats your boat, but unless your friends all have rotating seasonal decorations on their mailboxes, they may be more impressed by the effort than by the result.
But hey, my father once had to talk me out of blacking out the grill of a 1972 Oldsmobile (for a more sophisticated european look) so whadoIknow...