This tiny (1/4" long) barrel-shaped rare-earth magnet is a near-indestructible compass. Set on its side on a smooth flat surface (or on a leaf in water), it will quickly swivel to a N-S orientation, indicated by a red dot on the north end. It comes in a screw-top, waterproof aluminum cylinder with an integral loop that makes it easy to attach to a belt, button hole, strap, etc.
An ideal gift for hikers, kayakers, or anyone who wanders the woods.