1. Large ice cubes in a rocks glass half-filled with liquid
    This one I get; great sound.
  2. Rubbing a sudsy loofa on your body after you turn the shower off
    I guess you have to turn the shower back on?
  3. Throwing a large handful of small rocks high into the air to fall into water off of a dock.
    Never tried this but I'm intrigued by the other sounds so I'll have to give it a try.