Sailor!Havoc (not of the Bishoujo Senshi variety, mind you) makes his debut here, as well as slutty femme!Ed and slutty femme!Roy. Roy might be a bit borderline not worksafe, but he's near the end of the FMA sketches, so you can avoid him.
Of course, there is also Envy, FTW.
A warning, though, to those who have a slow internet connection. This post is image heavy, so it may take a while to download.
( Let's follow the fake cut to the crack! :D )