I made this Rubber Ducky cake for my daughter’s 1st birthday. I used the Wilton Ducky cake pan with a box mix, baking directions came with cake pan.
I used butter cream icing and colored the icing with Wilton, which colors to use also came with the cake pan. I decorated with a star tip all over and then for an extra touch made blue water with the extra icing I had and added small and large marshmallows for bubbles.
Very creative using marshmallow for bubbles. love it!