Perhaps a wall of concrete that retains back the land. Or the moon that shines bright guiding constellations. Maybe a safe that's tucked away under a bed, keeping valuables secure and hidden.  A disco ball that sparkles brightly under the light. A koala climbing the trees of the jungle. The magnesium that could bond objects together, the same magnesium that can break a bond apart. Or perhaps a group of stormy skies that cover beautiful summer sunsets, and the fog that comes after, lingering over the ground after a nightly storm passes.