Peel it off and stick it on the door of your safe. They're great bumper sticker for that purpose.
I've got the stickers to most of my gun brands, and gun organizations, slapped on my door.
I've often wondered where to put them and it's perfect. I won't put any gun related stickers on my truck for security reasons. I sure don't need to advertise that I'm a gun nut to every hood, thief, or burgler out there.
If anybody else has creative places to put these stickers, it would be good to hear where it is.