I was recently enlisted to assist our good friends in decorating for their 2 year old sons' birthday party. Obviously, shopping for pirate party supplies was loads of fun, but I found that creating my own was a lot more fun. With some help from great internet printables (see "Inspiration" below), we were able to create an over the top pirate party to welcome the terrific twins to the terrible twos (say that 5 times fast).
**Tip: We made all buntings using a paper cutter, x-acto knife (for the tough points) and twine. Some people like to use ribbon, but we thought the twine had a more "piratey" look to it. You can get bundle of twine at Home Depot or Lowes for about $4.
"Ahoy" Banner: http://bnute.blogspot.com/2011/05/free-printable-lilpirates-ahoy-banner.html
Pirate Skull Cap Suckers: http://blog.thecelebrationshoppe.com/2012/02/21/diy-pirate-skull-cap-suckers/
Triangle Pirate Bunting: http://www.cottage-industrialist.com/blog/2010/5/2/aaargh-pirate-birthday-party-free-printables.html
"Arrr" Bunting: http://blog.thecelebrationshoppe.com/2012/02/21/diy-pirate-skull-cap-suckers/