I like having a charm on my phone, it gives me something to play with when I'm bored and something to "accidentally" smack people with when they're being annoying.
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)