Inspired by hours of listening hours of Abney Park, my son and I went as airship pirates for Halloween. It was too hard to explain steampunk to everyone so Isaac said he's a pirate and I stuck with "I'm a pilot."
Here is pirate t-shirt that I wore under my airship pirate costume. Created using a skull stencil I made and puffy paint.
Here is Isaac's costume:
I added the pirate flag when we went to Toys R Us trick or treat.