By dropping a marble into a deep bowl of water:
Making a supersonic jet in your kitchen
Bloit, Bloit, Bloit!
Congratulaions, you have just broken the sound barrier.
What with PV=nRT, I wonder if you’d get an explosion if you half filled your sink with water, layered some propane gas on top of that*, and dropped in a marble.
That little supersonic jet is going to be hot, but is it hot enough?
*It’s way heavier than air.