I'll start with knife. The steel is my own creation of experimenting with smelting. A heavy blade 1/4in thick, 8in cutting edge, semi satin finish (I was being lazy),clay edge hardened can cut nails. Full tang, oak and black steel hilt, wrapped in brown single strand tsuka-ito (the cheap synthetic kind, not silk). The slingshot, forged from simple low carbon steel, a little epoxy on the ends for extra band holding texture, blackened and wrapped in the same tsuka-ito.