Challenges can repeat them selves, we've must of had enough character design ones to go around with some differences, your one was a pirate character one, this one can be anything as long as it is pirate theme, so that can be ships, weapons, flags (if you're boring) treasure, characters etc. Although following the same theme, it is much more open for model types.
@David, afraid not, you have to model within the time limit. Anything made before hand or not generally for this challenge, aren't allowed to be entered, I'm sure an artist like your self will be able to come up with something else that is more likely to get you your points
Did The Buddha have a Zen micro?