a place for zinesters - writers and readers
As for your parents reaction, you're the best judge as to how they might handle your involvement with zines and getting stuff through the mail. If they're the type that are overly worried by internet predators and the like, they might not take it good. Of course, you might want to present it as getting mail from"pen pals". They might get all warm and fuzzy with that idea, since it's sooo old-fashioned.
And if you can't ask for a P O Box for Xmas, you can always ask for a long-armed stapler!