Can't help you with sourcing the part unfortunately but have you heard of water transfer printing AKA hydro dipping?
See my thread here; http://www.350z-uk.com/topic/86048-hydro-dipped-interior-parts-door-pulls-grab-handle/
Lot's of people have had it done on their cars, ....if you don't fancy carbon fibre there are lot's of other things you could do; solid colours just like OEM, bright colours, sticker bomb style, various patterns etc.
Probably only cost you around £50-60 all in for both door handle/switch covers to be dipped. I also had my grab handle done which is why mine cost £70 but worth every penny imo. Any questions just ask.