I found a cake similar to this Finding Nemo cake on your site and thought I could probably make it. I used the sports ball pan with a 6 inch cake in the middle.

I iced the cake in buttercream then covered that with orange fondant. The white stripes are fondant too, the black stripes are buttercream icing. I used a Styrofoam board with a dowel in the cake to keep it in place. I used the ball and veining tool to make the face.

All the fins are also Styrofoam covered in buttercream.