Here is a deer leg bone knife I made. I used the back thigh bone from a deer a friend of mine killed. I simmered the bone in water to help clean off the meat and cartlidge. After cutting off one end, I scraped out the marrow. I ordered the blade from Crazy Crow Trading. It is listed as the 6" Solingen old time trade style. I melted down some pine pitch and a little bit of beeswax, and poured that into the cavity where the marrow was. I then sat the tang into the bone, and let the pitch harden. I also gave it the bone a few coats of olive oil.