Somehow, a big red ball (180cm Megaball) ended up in my garage and sometimes comes out to play as yard art. My favorite place is the pool (aka the "tank," "wet studio" or "wet cyc") where it just floats around the surface at the whim of a breeze. Eventually, it drops over the zero edge (infinity edge) partway into the catch basin. At dusk and early evening, with the basin and pool lights on, the graphics of it are very intriguing.