Baby's Box of Fun: A Karen Katz Lift-the-Flap Gift Set: Where Is Baby's Bellybutton?; Where Is Baby's Mommy?: Toes, Ears, & Nose! Go to amazon.com Related posts 9 best baby books set for 2022 FeatureBaby s Box of Fun DescriptionA trio of baby's best board books--Where Is Baby's Belly Button?, Where Is Baby's Mommy?, and Toes, Ears, & Nose--will provide hours of lift-the-flap fun in one box.