Every few weeks I troll Google for non-metal weapons for inspiration for the sort of Iglandish murdering devices characters might feasibly carry. I found this weapon recently and it's just too awesome to share. It's a shark-tooth sword! I rolled one of these in a horde which is what sent me searching for real ones in the first place. I didn't think these things had ever existed, and I don't really know how good a weapon it would really make, but it's awesome so it deals full damage.
Originally found here, there a sweet detail shot as of the teeth and binding as well!