Sugar Skull Tattoos (Calavera) become very popular over the years amongst those who are not Mexican, Catholic, or even religious. You don't have to be Catholic to appreciate the artistic value of the sugar skull tattoos. Mexican Skull Tattoos, Mexican Skulls, Sugar Skull Tattoos, Sugar Skulls, Pin-up-girl Tattoo, Skull Girl Tattoo, Skull Tattoo Design, <PERSON>, Couple Tattoos