This seems a little different from the usual beastman-made items; instead of saying its "unusual shape prevents it from being worn," it's unable to be equipped because of a curse . . . Is it just me, or does this sound vaguely familiar? *cough*abjurations*cough* Doubt that'd be the case, but it'd be cool. (b^_^)b
Could it possibly be the Cursed neck armor piece? I mean they do have most other body parts covered thus far, it could be that we have the pre-abjuration neckwear that could become rather valuable, depending on if it actually is or not.