Fit the decorating bag with Open Star Decorating Tip 16 and fill 1/2 full with medium consistency icing. Hold the bag and tip at 90° angle slightly above the surface of your cake.
Squeeze out icing to form a star. Without releasing pressure, move the tip in a tight complete rotation, starting at 9:00 (3:00 for lefties), moving to 12:00.
Without releasing pressure, continue to drop the line of icing to 3:00 (right-handed) or 9:00 (left-handed) and 6:00.
Stop pressure and continue to move the tip back to 9:00 (right-handed) or 3:00 (left-handed) to complete the rotation, and lift tip away.