Bull Tattoo Designsstock vector : cow skull is unusually flexible and her head is part cow skull, part giant ant.Georgia O'keefe's Cow's Skull: Red, White and Blue.Skull and rose traditional old school tattoo Size:275x386 - 163k: Bull Skull DrawingsCow Skull, Peace Pipe & Arrow Tattoo. by Ashton Anderson @ Southside TattooTattoo - Creative design and development - Wohillcow skull. angercow skull