Order pizza. (Have "It's Over" written in pepperoni.)
Take out a classified ad, Circle it and leave it on their pillow.
Via Tweet. ("Dear ___, They say breaking up via text is cowardly. So I'll Just use Twiter.")
Bake a cake. ("It's not me, It's you" in icing.)
Write her a list. (Things I like about you: 1. Nothing. 2. Fuck you, it's over.)
Show her a magic trick. (Wave a wand. "Poof! You are now single")