At Boom Box Post, we like to consider sound design challenges as creative opportunities. So, when I spotted an episode in which the characters travel via microscopic submarine through a human body, I was excited. Each exterior shot of the submarine illustrated it moving through a viscous plasma-like liquid. I wanted to call upon the tried and true sounds of a submarine for the vehicle itself, but I wanted to do something unique for the sound of it moving through the plasma. This was the perfect opportunity to get creative with some recording!