Bull Head Sterling Silver Animal Ring* Note: This ring is made to order, please allow 10 15 working days of crafting time. This is not a very common type of animal ring thats worn by many. Some Native American tribes believe that the bull skull is a symbol of life long protection from all natural elements. It is also associated with strength, courage, toughness, agility and so on. People with a bull ring are often quite strong willed and know their ways to make things work out for them