"It's Glinda, now!"
So the lovely Cathy (of the Crafty Corner acclaim) has made a beautiful recreation of the Emerald City Dress/One Short Day Dress (I really need to just pick one and stay consistent, don't I...). You can see more pictures and how she made it at this blogpost. It looks very much like the original, and she made it very inexpensively. You should definitely all go check it out!