Today's dads are not the figures of yesteryear, pacing in a hospital hallway, smoking cigarettes, and waiting to hear what kind of baby their wives have delivered. Modern dads are at the doctor visits, watching for the sonogram images, and at Mom’s side, coaching her through contractions and back pain on the way to the delivery room. What’s more, their roles as parents have also evolved. From crib construction to braided hair, these dads are involved in every aspect of child rearing. Here are some shower ideas that are strictly Y chromosome.