I saw this on e-bay:
https://www.ebay.com/itm/For-BMW-G30...gAAOSwQpZdg491
Seems like it might be ok if you have a white or black car, or have a bunch of carbon fiber trim going on already.
Anyway for 11 bucks, I'll give it a whirl. Those guys at IND are asking quite a bit of coin for a painted reflector.
On a white car I might even be happy with a clear reflector, but I have not seen those for sale for a G30 yet.