Bone Knife

doesn't create a sash on the player

These don't lose durability when used on dead animals and humans, so it's a good idea to take one of these with you when you go hunting.

Using bone knives to farm barrels is a very cheap and effective use for bones because they currently do not have many other uses.

You can actually exercise with a bone knife to make plays with it in combat (low geared players, nakeds, roleplayers etc). The combat style would be: jumping around the victim, slashing rapidly, making "jump blows".. basically, like a ninja.
The low amount of damage is able to be compensated by such a combat style, and the attack rate, surprise element, and the rush of the attack felt by your opponent (who doesn't know where to run, and how fast). After some exercise, it's pretty easy to kill a bow guy with it. You can place down 3 or 4 slashes every time they slide an arrow up.