Discovered with mod version 2.1.0 in Prominence II RPG 2.7.7
Feral Claws normally get obliterated.

1. Find Feral Claws in a loot chest (was a Lootr chest if that makes a difference)
2. Right click Feral Claws with a Bundle
   3a) Feral Claws are now in Bundle and can be safely stored as such anywhere.
   3b) Feral Claws can be deposited into appropriate Curio slot and fully function.