Flickr user artvixn took this photo of a humorous masquerade entry at the LA WorldCon 2006 about being a red shirt in Star Fleet.

Link [Flickr] | Artvixn's LA Worldcon 2006 photoset - see also Analysis of the Red-Shirt Phenomenon in Star Trek - via Super Punch

Update 9/20/07: Here's a YouTube clip of the entry, titled "Red Badge of Courage" by the costuming group ACRONYM - Thanks Arabella!