These blocks are top of the line exhibition grade and prices in the US$45 - $60 and will enhance any knife either on their own or in combination with a bolster of complimentary wood, horn or non ferrous metal of brass, copper, bronze or nickel silver.
I also have natural giraffe bone for full or partial handles
On Hand are blocks of
Macrocarpa wide fiddleback
Maple tight fiddleback and burl
Tasmanian blackwood fiddleback