Decorating Day Of The Dead Cookie Skulls Add a coat of black royal icing and sprinkle with edible glitter. Outline the skull, eyes and nose with a thin tipped piping bag filled with white royal icing. Fill in the skull with icing. Use a scribe to correct your work. And let dry. Add teeth and take them to the dentist for a cleaning. Dress it up by adding flowers and leaves with bright colored icing. Teddy likes them too! No cats were harmed in the making of this video. Happy Halloween!