Decorate cookies. Prepare Color Flow icing following recipe directions. Tint portions black and yellow. Use tip 3 and full-strength black icing to to outline cookie. Use thinned black icing in cut disposable decorating bag to fill in. Let set overnight.
Use tip 2 and full-strength black icing to pipe laces. Use tip 5 and full-strength yellow icing to pipe buckle. Use finger dipped in cornstarch to pat down.