We managed to get a frozen dress (which will be recounted if I ever finish Part 10 of my trip report) from the shop in Norway at Epcot (I think it's called the Puffin's Roost). The dresses sold out within minutes of the shop opening, and we had been told the shop opened at 11 but it actually opened at 10. Luckily we got there at 5 past 10.
I'm told it was bedlam in there!
Hope that helps.