I think this is more of a Mad Lib thing (I just dated myself, I'm sure!) with an alphabetic twist. We're supposed to use the sentence given in the letter "A" post, like so:
<Noun>. Don't <verb> home without it.
So using your words, Jenn: "[City of Heroes]. Don't [come] home without it!"
Now for mine: [Didgeridoo]. Don't [ditch] home without it!