Dragoncon Costume ideas…

Starting to think of what I want to take to Dragoncon this year.
For new stuff I have:
Romana II
Donna’s Silence in the Library outfit
Batgirl
Belle’s ballgown
Group costume #1
Group costume #2
Surprise (if I have time – may save it for next year)

I’ll probaby bring 4 or 5 more. Here’s the “old” costumes I’m considering:
DCnu Wonder Woman
Donna Noble Journey’s End
Emma Frost
Ms Marvel
Hippolyta (this one is definite, taking it for Wonder Woman shoot)
Valkyrie (fixed)

thoughts…? suggestions…?