Nautical Baby Shower Boy Ideas by LittleSizzle. Printable Decorations and Invitations. Nautical Baby Shower Invites and Inserts. Make the perfect announcement of a baby shower with this nautical baby shower invitation set. Included in the set are the Invitation, a Diaper Raffle ticket and a Bring-a-Book request card. Personalize the items with your own words. Simply download, edit and print!