"For a 1-second-long, 1-watt sound wave in water, the amount of mass would be about 0.1 milligrams." Does it makes sense to imagine a propulsion mechanism base

"For a 1-second-long, 1-watt sound wave in water, the amount of mass would be about 0.1 milligrams." Does it makes sense to imagine a propulsion mechanism based on that? Or is this application idea missing something obvious?