This is an axe I made from the jawbone of a deer I found. I tried to shave down the tip to wrap around the bottom of the jaw (which is now the top) and that ended up breaking before I could tape it to the shaft. I tried to straighten the shaft by tying it to a 2x4 and that sorta worked. It's not historically accurate but I just wanted to see if I could make one. The multi-tool shown is for scale.

(Just a FYI: the 'blade' is facing up in the picture)