Mexican saints are generally way cooler than their European and American counterparts. We don't have any one spiritual guide dedicated strictly to helping a drug deal go smoothly, and if we did, it sure wouldn't be a lady skeleton.
La Santa Muerte is often depicted as a skeleton in a shawl or bridal wear; you pray to her to ensure the safety of loved ones crossing the border, for a smooth drug deal, or perhaps something even more nefarious. I am not one to practice any one religion, but these Mexican saints have me changing my mind. Read the National Geographic article at the links provided.