I heard they have discontinued carrying them at the parks...but it could always change. I would get it prior if that is what you want.
Yes! They should ask, but if they don't, just tell them right away.
No, you won't have time. You will have anywhere from 20 to 40 minutes at BBB, and then if yo udo pictures after it will take longer. I wouldn't chance it. My DD had her due last a couple of days in 2009 and then I redid it myself, which was easy after watching it done. It was the diva style and I just rolled up the extentions at night and bobby pinned them. This 2011 trip it was put in much more tightly and she asked for it out that night because it was hurting her head.
I don't know all the colors, but I know there is pink, blonde, brown and black, I think there might be blue too?
No. They are very strict to stay with the 3 styles. I have asked a couple of times to make the diva less poofy like a ball and more spikey (like the borchure shows) and they won't do it. They said they can't very or everyone will ask for something different.
You could just buy a crown (th little tiara is aroound $10) and do it yourself and go to the Castle Couture (sp?) store and ask for them to sprinkle some pixie dust (glitter ) on it.