The sound of CB-23's underwater motor is the same as the Gungan bongo in Star Wars: Episode I - The Phantom Menace (1999).
Agent Tierny's helmet is a mash-up between those worn by Darth Vader and Agent Kallus from Star Wars: Rebels (2014).
The shipping crate Flix and Orka intend to ship themselves in is marked "Talivar organic product" in Aurebesh lettering.