Three more I heard about.....one involves making a puppet out of your sock and entertaining yourself and the crew for hours.....

If you're more into adventure, there's a modified version of the "scavenger hunt" in which you go through the bags and pockets of your fellow crewmember....then...if you find anything interesting, you either keep the item or give it to someone else who would most likely use it in the presence of the original owner.

Lastly you can play the fascinating game exploring the social connections of self-identified "good guys" and their friends called : 6 degrees of disputed pairing.