The following is Open Game Content from a 3PP Source
Tribal Spirit Shield
Aura strong transmutation; CL 15th
Slot shield; Price 19,393 gp; Weight 5 lbs.
This large wood-and-hide shield is similar to other tribal shields, but the totem animal painted on the shield’s face seems to move when the shield is carried. Crafted by tribal shamans to grant its wielder the power of tribal totem spirits, a tribal spirit shield functions as a +1 ghost touch light wooden shield.
Once per day on command, the shield can grant its bearer bulls strength for 1 minute. Other versions of the tribal spirit shield exist; some are known to grant cats grace or bears endurance to their wielders instead of bulls strength.
Requirements Craft Magic Arms and Armor, bulls strength, etherealness; Cost 9,733 gp