A good friend of mine is a member of the American Mountain Men. They do knife and tomahawk throwing at their rendezvous. Attached is a pic of what he throws. I think it’s a cold steel hawk and I know it’s a homemade knife. I want to make some throwing knives for me and my boys. Any ideas for a good 1/4” hunk of steel that will fit the bill for durable, won’t bend, and not too brittle to snap? I’m thinking leaf springs...???