Asktriplets -- I remember that post on the Wendy costume. I think the OP purchased a pattern for a nightgown that was similar and just raised the waist.
I have done Ariel, pink Aurora, Alice, Belle in her librarian dress, Pocahontas, and am now working on two Jasmines for DGDs, 5 & 7. I keep putting off Cinderella and Belle in her yellow gown, and another Aurora since that one has been outgrown. I love doing these for my DGDs, but I really feel the pressure to get them done in time and do a good job. I have to keep telling myself it's only a Halloween costume, not their wedding gowns!