An interesting chat with Ian made me re-visit the CF route again. I've managed to get some sample pieces and some epoxy, so will try his idea over the weekend. If that doesn't work, then I'll fall back on the wood idea again.
But while the Zebrano looks awesome, a little level headed thinking and input from others have made me re-consider it. So I'm holding thumbs that the CF thing works out as I'm at a loss for a unique and interesting wood finish...