There is a way to change your appearance on official servers. However it will require you to forfeit your level and feat points.
Have another player join a clan with you, making all your buildings belong to the clan. Select recreate character and redesign your character. After creation, go to your clan mate and join back up with the clan.
You will have to relevel, but you will have access to all of your surplus supplies.
This is only theoretical to me at this point. I have not created a clan or joined one. Anyone able to confirm or disprove this tactic?