Well for my sisters 18th birthday party we did our tradition, we invited all her friends from her old school and new our cousines, and it was chaperoned.
we ate as much as we wanted, had presents, and unprepared speeches. we called deerest friends and family up and they told everything they new about that person even imbarissing moments and no one new about the speeches. over all it was very fun!! you shloud try it.