Just as I remember my Grandma and Mom doing, I cut out the dough with a glass from my kitchen. After they cooled, I made the royal icing and tinted half of the icing light blue with gel food coloring. (Dip the tip of a toothpick into the gel and add a little at a time. You don't need much for pastel colors.) I put the icing in pastry bags and used a #3 round decorator tip for the blue and a #2 for the snowflake lines. The snowflake design is easy. Make the large lines first with two X's that cross each other. Add the smaller lines and a sprinkling of sugar.
No need for perfect lines or expert decorating skills. They were so cute and tasted great!