I did this Peace cake for my union president who is celebrating 40 years of friendship with her three girlfriends. All of their birthdays are around the same time as well.
I started with a rainbow cake by making concentric circles of colored batter and iced it in green butter cream. I used gum paste to make brightly colored daisies ahead of time and made a fondant pink marble peace sign. The happy face with the hippy headband is made out of fondant as well. I used a tip #21 for the shell border.