Not sure if its been covered but here goes anyway
TRUE PRIMITIVE (ARCHETYPE)
Trophy Fetish (Ex): A trophy fetish
can also be attached to a suit of hide armor, granting
the true primitive a +1 morale bonus on saving throws.
Furthermore, if that armor has the fragile property, once
per day, the true primitive can chose not to have the armor
break on the confirmation of a critical hit made against
her.
Should be something like: A trophy fetish can also be attached to a suit of hide armor or armors made from bone, granting
the true primitive a +1 morale bonus on saving throws.