I made this Under the Sea Whale Cake for my daughter’s 6th birthday. She wanted an Orca under the sea theme. I wanted to make the Orca the focal point of the cake being her favorite animal.
The ocean is made from 4 13×9 sheet confetti party sprinkle cakes, two side by side then a second layer on top. Iced in butter cream frosting that I used royal blue gel food coloring lightly stirred to make the swirl color.
The orca is made of rice crispy treat (recipe taken from the box) formed on a dowel then covered in fondant that I dyed with black gel food coloring. I also put a dowel straight into the cake so the orca could rest on it as to not sink into the cake and then used decorative tips to not only make wave effects but cover the dowel i had used to level the weight (the orca was 10 inches long and 5 inches at its widest point, the cake was 26×18).
The tail was all fondant sculpted onto a dowel and stuck into the cake and decorated with the tips as well. but when fondant gets warm it tends to droop so i would have extra toothpicks handy for extra enforcement just in case.