Happy Halloween wedding cake topper

This Mexican cowboy skeleton wedding cake topper on Etsy is freaky awesome (the bride is wearing a wedding ring) and supposedly brings good luck.

According to the seller: "Before you [decorate] your wedding cake with this couple, you must write both of your names and your wishes on a small piece of paper, put [them] inside the dolls that [are] filled with natural tourmaline, hold a couple dolls in your two hands [and] then make a wish."