If you still got the Belbi's Eyesight Enhancing Romance Goggles - Thottbot: World of Warcraft (brewfest coming in not to long I think) you might be happy to know that there is a way to make them show people as gnomes but still have your normal helmet on.
This happened to me on a live server during a raid to TK (ugh).
I´m still in raid so not completely tested but I can test it more if people want to.
I think that you need itemrack, I used it.
Equip your goggles, remove your damagable gear to avoid repair bill, die, use itemrack so that you equip your normal helmet, release, done.
The effect was still active even after dying the second time.
IMPORTANT: This might only work in places where you get turned to life on realese (like in TK in my case and paussible with rezzes)
SS to confirm: if I could figure out how to do it, to tired to try.
I post now instead of testing first because I won´t be able to post this in a few days then, as I don´t have to much time atm.
If you normaly release and run back and have your goggles on, bind your normal helmet to a hotkey and spam it and press accept might give the same effect.
Sorry if the post is confusing.
Searched and found nothing similiar.
EDIT: I had a much better usefull exploit but since I searched and found nothing about it I guess that that one is a repost aswell.