With chocolate frosting is another variation. I made a simple white cake, put chocolate buttercream in the middle and swirled the top with more chocolate buttercream. You can kind of see the pattern better with the chocolate.
With a star tip, make a circle with the frosting, about 3 turns. Stop. Start again in another area of the cake. Fill in holes with strips of frosting.
Happy Birthday Shannon!! I hope you enjoyed your cake!!