Rainbow Magic books, and also still loves Magic Treehouse books (and FYI if you're not familiar with either series, there is no correlation between them even though Magic is in the series names for both).
She knew we were on a budget, and after all was said and done, we managed to keep the entire party, including our gift to her, which I'll tell you about later, under $100!
inspiration from Reid Girls Handmade. It cost me only $3 for copies to be made on cardstock at the local office supply store. Ribbon and envelopes are always on hand in my craft room, so no extra $ spent there.
It was a nice relaxing party, no hustle and bustle, and the girls all had a great time. Best of all, it didn't break the bank.
Our gift to her was an LED book light that has a charging station (and the special edition book Belle the Birthday Fairy). We let the girls read at bedtime (we encourage reading), and feel it gives them flexibility and not 'feeling' forced to lay there when they're not yet tired. We've used glow bracelets in the past to provide them the extra light. The book light was definitely something she loved- my husband even found her using it in a dark room in the middle of the day one day!