Every person who wants to gets to request a drabble (real drabble: 100 words exactly) from you. In return, they have to post this in their journal and write a drabble for you. Post all fandoms you're willing to write for. Your friends can pick a relationship, a story arc, a missing scene, or pretty much anything they want, unless the author has previously mentioned that they will not write it. They comment with what they want, and you write drabbles and post it in your LiveJournal.
Fandoms, let's see...I make no claim to know every single detail about most of these. Some I'm better at than others. ;) So if you ask for something really esoteric you may just get a "Well, crap, I have no idea what you're talking about"...So! In roughly descending order of confidence:
Revolutionary Girl Utena
Kaiju Big Battel
Romance of the Three Kingdoms
Note to self: Reveal Cephied sometime.