You mean pickguard? Did you check "the usual suspects"? (I've just learned these myself
The T-store, bassparts.de, bestbassgear.com
There are others, too, like Lottonen in Helsinki, who will cut a pickguard to spec, as bassparts.de does.
Also, google found http://www.ernieball.co.uk/p/music-m...k-scratchplate
- from the manuf 'emselves!