Hello I'm relatively new to teaching physics and was wondering if you anyone had advices as to the parameters to put on this challenge. How high should I drop their containers from? 2nd or 3rd story? When I was in school, I think we could only use glue and toothpicks, but I don't remember if there was like a weight limit on it. I was thinking popsicle sticks could also be good. I would love any advice from people who have successfully done this challenge before. Thanks!