I vote for not knowing. If our princes don't know then we shouldn't either. That way we are more compelled to succumb to the temptation.

And about their personal items- it really doesn't matter to me. The less the better- considering they're under punishment. Maybe two items? Nothing crazy like a car- but something that they cherish idk. Like when little kids go to summer camp with their favorite toys or a blanket they've had since they were like 4.