Mardi Gras Mask 4.5” Cookie Cutter Mardi Gras Mask Cookie Cutter – Decorate shamrock cookies for your St. Patrick’s Day party. Use our sanding sugars to add sparkle and color. Tin Plated Steel Cookie Cutters are Sturdy All our cookie cutters are great as a pancake mold, or for cutting cookie dough, rice krispie treats, fondant, soft fruits, bread, sandwiches, cheese, or craft clay. You can have fun in and out of the kitchen!