Character Model Changing.

[aybiss14]

Hey, I play a human warlock on my server, hellscream.
After several months of wondering around as a big bulky dumb looking human, id like to change my graphic, ive seen it happen alot, night elfs turning their toons into undead....
Druid changing cat form into hogger....

My goal, is to turn my human into a Male undead.

the graphic could be rough, im just trying to get a different casting graphic primarily.

Has this been done before? is it simple? still legal?

If all is all, Id really appreciate some advice on how to go about this.
Im getting sick of consuming thousands of noggenfogger a month just to change to the undead graphic