Firewood is indeed the first thing that comes to mind. But there might be enough sound wood for a set of handgun grips, some pen blanks, or knife scales. Then there's always the walnut scrap box, which you keep in case you need a small piece to use for a stock repair.
On the bright side, it is easy to see the direction of grain flow through the wrist section. Just follow the deep checks and cracks. Flip it over and fill the checks with clear epoxy, and you might be able to make a stock with extreme drop like this Lefever. Until this, I don't think I have ever seen a gun with stock dimensions suitable for a giraffe. I wish I knew the story behind it:
I do like the old burl wood bench that damascus showed us.