The swords would be wooden shafts edged with sharp stone bits (such as obsidian) or teeth. Do a websearch for "macuahuitl" to get the idea of how they look.
Such weapons are incredibly effective at killing people and animals, the real issues come when you find some kind of hard armor.
Stone tipped spears kill just fine. Wood tips do have less killing power.
Arrowheads are really small, and should be made out of something hard.
Bone tips are really only used when people can't find a suitable rock. Given the plethora of magical creatures running about, I don't think I would dock points for using bone vs stone.
Simple bows are just made out of wood.
Compound bows would require wood, horn, and sinew.
Crossbows, on the other hand, really need some kind of really potent material to hold the power of the weapon. Mind you, they don't really need a lot of metal, just enough for the trigger mechanism, which is about the same amount needed for a dagger.