I once met an old man who was wearing a tree lichen overcoat, moss trousers, and a grey hat. And he looked very stylish. But I haven't been able to find those items anywhere.
But seriously, I'm not sure if fine/masterwork kaumolais spears are in the game, but I don't think I've seen one if they are.
I've seen one masterwork javelin and a hare (iirc) ran away with it.