The best birthday cake I ever made was for my son's 6th birthday. He's a baseball fanatic, so I bought a cake pan in the shape of a boy baseball player. I baked the cake in it, and made icing that you squirt onto the cake in star shapes. I used food coloring to make the icing in different colors, and decorated the boy in my son's baseball team colors piping the icing on in small stars. I also put his number on the boy's jersey. He loved it!