Braincake.

In case you wind up overrun with zombies that have a sweet tooth.

(I know someone who would make this. This person is the one who, when invited to a potluck, instead of considering "what would the other people enjoy eating?" wonders, "What food can I make that is very clever and topical and no one else has ever done before?" [without considering potential reasons for why it's not been done...like, maybe it shouldn't)

I don't know; I've seen the Ace of Cakes show and all that, and maybe I'm just a Philistine, but give me a good old-fashioned lazy daisy cake or Wellesley fudge cake over some creative, fondant-encased architectonic masterpiece any day.