Second B Day Theme?

Looking for a theme for my daughter’s second birthday party. It’ll be mid-October. For her first birthday we did a twinkle twinkle little star theme, and had people bring donations of books and pajamas for The Pajama Program, a charity that gives pajamas and books to kids in homeless shelters and foster care. I’d love to come up with a theme that I could have a coordinating donation for. I’m stumped though! Her favorite thing to do is read, she loves Elmo, Curious George, and Mickey and Minnie. Any ideas?