I'm gonna get one for my iPhone just to mess with people.
There's no shame in loving cupcakes more than anything else in the world. Go nuts, put cupcakes on everything! What harm can it do other than making everyone around you hungry?
Available at: Modcloth http://www.modcloth.com/store/ModCloth/Apartment/Gifts+Electronics/Have+Eyes+for+My+iPhone+Case+in+Cupcake ($15)