Couching is simply sewing a heavy thread in place with a finer thread. Its a retro technique, too, that was originally done by hand, but it works beautifully by machine as well. I use a zigzag stitch to secure the heavy thread in place.
Made with found driftwood, from the beach, twine and black steel wire. Mounted on small driftwood base. Acrylic painted in black, pale blue and white. Maximum dimension wide by high. Inspired by the east coast of Vancouver Island.