I bet there is a way, same as there are ways to replace the opening video with something else if you really want to. I just have no Idea if this could get you banned for playing around with the game data.
I have never done it, and I am also to lazy to ever try it, but in FFXI with "slight" alterations of your *.dat files you could change your Armor to have a different texture. Some seems even to be implemented but not obtainable, others just are making certain parts "skin toned" so it looks like nude (there are some silly screenshots for this)
