Well, you are not going to believe it but 1 of my DD just got her picture of Ariel in the mail today (we mailed our request last June!!!!!) IT is an 8x10 b&w pic but there is not autograph. I am hoping the 1 will come for my little DD in the next fews days.
Maybe it depends on the character....as mentioned, don't get your kids hopes up(I did not even tell mine when I sent the letters) and perhaps you will get lucky and get one.
Good luck!!!!!