Big and Little Activity Devotional by Rachel Swanson, is a great book for all ages!
Not only are there activities for kids and adults, the book is laid out so that the child and adult can do the same activity at the same time (and age appropriate to each one). The book literally folds open facing the adult and the child at the same time.
Not only that, each page contains a biblical devotional for you and your child to learn and discuss together.
I highly recommend this activity book for families seeking to do fun, interactive devotionals for their kids.