Considering I'm planning on eventually coplaying from the TotA fanfiction Reflections, I don't see why fanfiction cosplays wouldn't be allowed.
Youmacon 2013 (if I make it)
Marian Fustel (Tales of Destiny)
Alvin (Tales of Xillia)
Marta Lualdi (Tales of Symphonia)
Chester Barklight (Tales of Phantasia)
Spada (Tales of Innocence)
Estelle (Tales of Vesperia)