Not sure if this is art, craft, or gardening. Pebble mosaic "carpet" is beautiful. For this pebble-mosaic patio, the author modified a classic Persian carpet design to represent the creation of the universe.
how about clay bird bath with clay fish on wire inside. Trompe l'oeil fishpond mosaic in Bedford Road, Croydon by mosaic artist Gary Drostle. I love the shadows under the fish - really creates depth. Nice movement in the water as well