For a unique Santa, base ice a 1/6-sheet cake with white icing. Pipe Santa’s stocking cap with tip No. 12 and red icing, then smooth the icing with a palette knife. Next, airbrush his face pink and add extra pink for his rosy cheeks. Pipe facial features, such as eyes, nose and mouth, with writing tip No. 4. Use star tip No. 22 and white icing to cover the rest of the cake with Santa’s beard. Use the same tip to add a tassel and trim to his cap, eyebrows, mustache and a bottom border.