Dogs love bully sticks! These fun treats are a safe and healthy alternative to other dog chews out there. Unlike manufactured dog chews, bully sticks are a fully digestible single ingredient treat. So, what exactly is a bully stick? Are you ready? A bully stick is made from bovine private parts. Historically bully sticks have been used for different purposes from walking canes to medicinal powders. Although we don’t believe there are any medicinal benefits from bully sticks or rhino horns for that matter. We do know that many dogs love these nutritional treats.