Baby shower idea: Guess the baby's birthday! Great way to replace a guest book. You could use stickers of a pacifier and/or a rattle. Each person placed the sticker on the date they predicted and signed their name. Perfect to put in a scrapbook, too!
To the people who complain Disney is "inappropriate" for children - that's because the films aren't only for kids! Besides, kids don't notice the little references in the movies that only adults understand (like shoe size thing in Frozen).