On the saxophone, using a specific set of fingerings one can "play" two notes at once. This creates a clashing, almost chewbacca-like sound that can be utilized in some specific settings to create a certain effect.
An attempt to create the sound of tentacles moving using a wet shower mat in a bathtub. Useful if you're trying to create a horror movie type sound where a tentacle creature is moving around. Possibly. Recorded using my tascam dr-40 and then added a bunch of filters in my daw (hindenburg).