How about the Kitchen Sink cake at The Kitchen at The Hard Rock?
"The Kitchen Sink Cake... is “a 3 pound slice of cake with seven layers of heaven including – brownies, peanut butter crunch, chocolate chunk cookies, cheesecake, pecan pie, devil’s food cake, vanilla chiffon cake, all covered in chocolate butter cream frosting, chocolate chips, chocolate sauce, and heath bar crunch; served with vanilla bean ice cream.”