The loose plan is a list of dares starting with really easy stuff and slowly getting trickier (and more daring). A challenge would be posted each week and those people taking part have 7 days to post a photo showing that they’ve completed it (faces hidden if preferred).
I’m not sure if people who don’t should get kicked out until there’s only one person left who is declared the winner or there should be some sort of penalty for those who don’t do the dare?