I own a bunch of airsoft guns and boffer swords! Also fencing equipment. As far as actual dangerous implements, I have a few knives I mainly use to open things and a retractable baton (a gift from my paranoid father).
My parents, on the other hand, have what amounts to a small armory in their gun locker.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.