Depends on the friend. With certain people I would think they were just trying to do something nice for me but there are others where I know it would be a dig at me.
Have you implied that you would like one. If you have been passing out hints this is what you want for Christmas then you should be pleased, but otherwise might be a bit different.
Neither, but I would decline the offer. I believe that cosmetic surgery should be reserved for serious disfigurement. Anyway, my friend would not dare ;o)
If I had repeatedly mentioned issues with my appearance I would see it as a kind gesture, if I was perfectly happy and this 'gift' had come as a surprise, I would feel a bit peeved..
I wouldn't have one if it were offered, but it really depends who was offering. If it were a kind gesture, I'd say no but with thanks - if it were a sarcastic dig, they'd get a poke in the eye.
Appalled. Tell him/her to give the money to a charity which would help the facially disfigured. I can live with me the way I am. Only look in the mirror when I brush my hair.