My formal Riza, MrMelchoir's formal Roy Mustang, and Shinteetah's formal Edward Elric were made and worn for the Masquerade Charity Ball at Anime Central 2007. I refer to this as my "Spoiler Riza" costume because of the design on her back... (though I think that volume of the manga is out now in the U.S., so it's a little less of a spoiler for those keeping current on the manga.)