Spork - why don't you just have the top up, with the front opened up and showing your muscle shirt? It can still be loosely fit, and go with the feel of the outfit.
Kaizoku-Syn - that Blackbeard is kickass, especially the squiggly line pants. I also liked Luffy's yukata.
Also, had klayr and pho3nix over the last few days, and we managed to pull out a quick OP cosplay. Hopefully I'll have those all edited and ready to share by tomorrow.