If I'm able to make it in 2010, I might break out my Nathan Explosion (Metalocalypse) cosplay, and that doesn't fit any other category I've seen for threads. In fact, my other current cosplay plan/idea would fit under miscellaneous, or at least doesn't appear to have a thread. This being Hinagiku Katsura (Hayate no Gotoku).
I've also joked about just putting on some BDUs, a fake beard, and cosplaying as Fidel Castro - or possibly Generic Latin American Strongman.