Ok then, my suggestion would still be to go for it, but see if your parents will be out of town for a few days, and look at the order form and try to plan the delivery to come when they are gone. Best of luck!
Ohk, well I decided that if they askedwhat the package was, i would claim not to know and would want to open it at my own leisure. If they insisted on opening it there, i would tell them that maybe it was a gift for someone. If they opened it already, made you open it, i would claim that i didnt know what it was (only use that if you didnt say it might be a gift xD) and if they dont believe you, tell them it was a joke your friends pulled on you/a dare you made with them. If they throw it out, just wait until they are distracted/not around and sneak them to a hiding spot (maybe bring a bag, or if you are in school, hide them in your backpack when you get home.) But like i said, it depends on what your parents are like. I think this was your question but sorry if i misunderstood xD
Well I can't private message you for some reason but what i did was i went to this Diaper Request Form and filled it out with what i could. I found what size to order for each brand on the site as well, just find what you want to get a sample of and find it on this page, the sizes should show once you click on the product: Sizing Chart. So anyway, i just thought to myself about what to do in the situation that they found it, i pre-meditated a course of action. It all depends on your parents and if they are nosy, etc...if you need more help/more tips when just ask me again. Best of luck with whatever you decide to do!