T.B.
Young ladies that age in my area LOVE LOVE LOVE spa parties. Have her closest friends over and give them "facials" & do their nails (mani & pedi), you can even curl or style their hair as they watch their favorite movie or TV shows. When that's all done, they can dance to their favorite music and do freeze dance or do their own version of American Idol---each sings and others"judge"--more like Paula and less like Simon LOL!! Take plenty of pictures. Give out mini photo albums from the dollar store and print out photos and sent them in a thank you card to the guests. You can get the facial scrubs/lotion and nail polish from the dollar store as well. We did this 2 yrs ago for one of my kids 9th birthday (girls wore PJs but it was not a sleepover--just "girls night") and they still were talking about how it was so much fun when they got back to school in September! Good Luck!