Need a little touch of bad-ass in your jewelry box? Well, first get rid of the jewelry box. You’re a man! Once you’ve done that, grab one of these Mini Switchblade Necklace items. You can see from the pic that it folds up or pops out with the push of a button.
From there, it locks in to place and gives you a sturdy three-quarter-inch blade that works in most any situation (except a knife fight). In all seriousness, this would come in quite handy if you’ve got a lot of boxes to move or need a nail file on the go (without being seen as the kind of guy that carries a nail file, of course).