The Bone weapon is either the limb of a Animal or a Dead Bear, but seeing how long it is, it could be something else. Similar to the Bat,it is a bludgeon, fast action weapon, thus takes a lot of hits to kill a bear with. This weapon is always carried by Zombears,except for Oodoo.
Naughty stuffs the end of the Bone down a bear's throat, suffocated it to death, then poses as a Zombear for some reason, after pulling it out of the dead bear's throat, as the bear falls over dead.
Suicide: The bear will stare at the bone then repeatily hit him/herself in the head until death.