I built an acoustic LEVITATOR! Making liquid float on air

Very cool that this is actually a thing. Now, if you're looking for the strangest application possible:  suspend a droplet of something that will attract those annoying, tiny flies that sometimes get in the house and zip in front of your monitor, and create a standing wave strong enough to freeze the bug in mid air. Boom: sonic powered catch and release fly trap. Wasteful of energy, arguably pointless, but it would be cool to watch if it actually worked.