We felt that a sea of faces looking at mothers from the shelves would be sure to attract attention. However, we were reluctant to use images of (other people's) babies as, for mothers, there is a disjoint when the baby is not their own. The solution was to use illustrations of animals done in a naive child-friendly style.
Where possible, the packs have cut-out puppets on the back so that moms could play with their kids and engage them directly with the product.