If your an engy, get the engy teleporter trinket and when you use it you can get a "transporter malfuction" debuff that gives you a different skill for an hour:

"Transporter Malfunction - Looks like your pattern matrix got mixed up with the last person to use the transport pad."

This gives you a random skin of varying races & sex. So far I've seen male dwarf, female gnome, female draenei, male night elf, female blood elf, male troll, male tauren & female orc.

The good thing is if you don't like your skin, you can re-log and get another one!

The catch - the trinket has a 4 hour cooldown.

Cheers,
Stealthy