On heavy card stock, I printed (with "valiant" font- looks English/old-style)an invitation poem that read "Ahoy there matey! Pirate Captain Evan is turning three! So join us for a Pirate Birthday Party! He needs shipmates to swab the deck, walk the plank and hunt for the long, lost treasure... A sailor's lunch and a pirate cake will also be there for your pleasure! Please say you'll come for a swashbuckling fun Pirate Birthday Adventure! We set sail on- the date. Captain Evan's Pirate Ship is docked at- our address. RSVP Pirate Co-Captains- parents and phone number." On the top of each invitation was a picture of my son in a Pirate Captain costume (I made this costume for him for Halloween- red velvet coat, gold sailor buttons, lace collars) and next to him was the Fisher Price toy Pirate Ship and a stuffed animal parrot. On the envelopes, I put some pirate stickers & printed the children's addresses and my sons return address with the same font and tore the edges of the creme paper to look "old."