To make the ribbons roll out some coloured sugar paste icing. Use a paintbrush and brush a cross on the cake with boiled water. Cut two strips of icing, place one horizontally across the cake and the other one vertically over the top, the boiled water securing it in place. Cut two small pieces of icing and fold over and secure with boiled water. Cut two more small strips of icing and use a sharp knife to make the tip of both a 'V' shape. Secure to the cake using boiled water, finishing with a rectangle of sugar paste icing on top for the knot.