Trace pattern. Lay small piece of baking paper onto our pattern. Using the blue FoodWriter edible marker, trace the pattern onto the parchment paper. Place traced paper onto a cutting board. Using a craft knife, cut out the black areas of pattern. Place cut-out pattern on cookie. Using an edible marker, trace cut areas of the pattern onto the cookie. Remove pattern. Outline and fill in cut-out areas with tip 3 and blue icing. Pat smooth with fingertip. Pipe lines connecting shapes. Let dry several hours or overnight.