Took a trip to a nearby mineral and gem shop that sometimes had fossils. To my delight, the shop owner showed me a sword made up of fossil bones. It's unclear what bones were used but the shop owner said it was probably mammalian, perhaps mammoth or something from the ice age.
The sword was actually pretty durable and could be used as a weapon (at risk of breaking the fossils of course).
Certainly the strangest fossil I've seen this year!