It doesn’t hurt to learn about the details of texture swapping and model replacement, either. It’s a good place to start if you want to dip your toe in the modding community waters. Of course, they also offer other kinds of textures and interesting effects to try out. You might want to first join the Warcraft Skins Yahoo Group to get the latest and greatest nude and sexy clothing mods for WoW.
But you aren’t here for that, are you? You want to replace your character’s bra with bare skin.
You can use texture swaps to get your Gnome up and riding on a kodo, or to replace your Voidwalker with Ragnaros the Firelord. The changes are purely cosmetic, do nothing to change the game, and affect only things that show up on your screen. These texture swaps and adjustments are basis for mods and patches which add, or more often remove, cosmetic images from your WoW characters. Because we’re all adults here, it’s fairly safe to discuss doing horrible and awesome things to the textures in World of Warcraft.