Checkerboard Birthday Cake - Eat Healthy Stockphoto My mom had a set of cake pans with separators that made a checkerboard cake. The batter had to be extra thick to keep it from running, but it turned out pretty. This way, however, is foolproof.
Pipe large bands of colored buttercream icing. THen use an icing scraper to pull and blend the different colors around the cake. This multi-colored smear creates a beautiful, natural look that's unique every time.