During my trip to Japan in July 2017, I made this picture in Matsuzaki, Izu peninsula. The old man walks to the beach regularly and every time he brings back one nice pebble. This is his whole collection. He watered them, for us, to show the nice colors when they're wet.
One easily gets the funny thought: huh, is he watering these stones because he thinks they're gonna grow, or what?".