Click on the "Stream Pirate" link.
That, my friends, is the official (as declared by me) Stream Pirate Flag. Thus, if you would like to be a stream pirate, simply fly this flag over your steamboat and do your best to avoid getting caught by the CTD. Be sure to plant a stick of dynamite or two to make it official.
Most of you have no idea what I'm talking about. But trust me. You want to be a stream pirate.