In the event everyone starts turning into zombies and eating each other's faces off (looking at you, Florida), this Tactical Tomahawk axe is the kinda tool you'd want to have.
But really, if you're doing some kind of excavation or rescue work, the SOG F01T Tactical Tomahawk ($27) could be totally useful. The 15.75-inch weapon's got a 2.75-inch stainless steel blade, touch polymer handle, and it only weighs 24 ounces. Axes: not just for lumberjacks anymore. [Uncrate]