S.H.
Hi, N.!
I agree...you are brave. lol But, I think it can be fun and fairly peaceable if you include activities, like you've planned.
I don't know the sisters you're talking about, but I have a dress-up party business which also includes a stuff-your-own-animal business (Noah's Ark Animal Workshop) and glamor party, where the girls keep the make-up (Bella Bee). You can check out my site at: www.EverAfterParties.com for more details about all of them.
I would love to work with you on something to plan for, even if just consulting. The animals we have are superb and super cuddly! The make-over parties are great for this age, and they learn about a certain value (friendship, for example) at the same time AND get to keep their make-up and accessory as a party favor! This would make for fun photos.
I also have a red carpet and karaoke machine/music I can bring, too. You can also combine the parties (make-over AND stuff-your-own-animal, for example.) I have lots of themes for the animal parties you can choose from for her age, including Strawberry Shortcake and Care Bears!
Please, feel free to contact me via e-mail or Mamasource. Either way is fine.