I made something from the piece of wood last weekend. There was a pretty deep edge crack on the side with the sap wood, so it was not usable for a knife handle. The sap wood looked really good to me, though, so I wanted to make something from it rather than just cutting off the cracked part. I cut a thin strip from that side and glued it to another piece of wood to make a magnetic knife holder. I also cut some wa handle blanks from the wood.
The piece of ebony was given to me by a colleague and I gave him the magnet knife holder as a thank you. He sent me a couple of pictures of it that I thought I'd share. He made his first knife about a week ago (a kiridashi) and his goal is to replace the four knives you see in the picture with his own creations.