A simple mod that adds a craftable weapon out of bone and flint via a shapeless recipe. The Bone Knife is slightly weaker than a wooden sword, but easy to make and highly enchantable, more than a gold sword.
I needed a weak starting weapon for a custom map that could be easy to craft from non-exploitable materials. I wanted to make it possibly useful later in the game, so gave it a pretty bonkers enchantability rating.