Just to get some ideas flowing, One that would make it more interesting, though possibly cumbersome if not planned out well, could be something like making it a series of dares/tasks proposed by voters. Each round, “voters” would suggest a dare or task, with an acceptable method for verification. Participants would be choose from amongst the various proposed tasks and provide the verification of completion. Failure to complete a task means loosing an item of clothing. Each round the list of tasks would roll over and grow, but participants could not complete the same task twice. Game would continue until one participant (or more) was stripped completely.