No. Actually I am against post-creation changes completely.
"Oh, i just threw some stuff together when I created my character and now Im not happy with it"...
Guess what? Tough luck.
You shouldnt be able to just completely change your skin color / body type / head model after you create that character, it's more realistic this way. A character's face and body type dosen't just change because you got bored with it.. Now hair styles I could agree with, a character could realistically change that at some point during thier "career".
It takes me anywhere from 10-20 minutes to create how my character will look during creation. And if I for some reason during level 1-10 find some thing I'm unhappy with, I re-roll him/her completely and delete the mess up.
Maybe I'm hardcore, I dunno. But I just don't think you should be able to change appearances on a whim. That character is that character, and he dosent change.
My facial features haven't changed in the last 20+ years...have yours?
But then again, if this was implemented, I just wouldn't use it - I'm always happy with the toons I create.
They can not only get their hair styled/dyed, they can also get a tan or avoid the sun and become pale, not to mention change the makeup!