The Mantell Mix snack that Omega and Wrecker eat following missions is based on the Outpost Mix found at Star Wars: Galaxy's Edge. Early scripts called it "Outpost Mix," but it was decided that Outpost Mix was specific to Black Spire Outpost and Ord Mantell would have its own version.
One of the parlor's regulars, Bolo, is seen harassing Rex for sitting in his seat. An as Ithorian, he's physically incapable of speaking basic due to his species' unique anatomy of having two mouths; thus, Bolo wears a translator collar to help get his point across.
Omega recognizes Rex as a Generation One clone. This means he's from the original batch of clones, created about 10 years before the beginning of the Clone Wars. Omega has seen clones of various generations grow older before her eyes due to the accelerated aging implemented by the Kaminoans.
The planet Bracca was originally created for 2019's hit video game Star Wars Jedi: Fallen Order. The junkyard world is one of the galaxy's main locations for deconstructing and dumping the warmachines of the Clone Wars.
Rex brings the Bad Batch to a crashed Jedi cruiser to remove their inhibitor chips; we see Rex have the same procedure on a similar ship in the final episodes of Star Wars: The Clone Wars.
The Scrapper Guild, which runs trade on Bracca, was also created for Star Wars Jedi: Fallen Order. In the game, set after the events of Order 66, Cal Kestis works for the Scrapper Guild; when Cal is revealed to be a Jedi, he's swept into an adventure to find a list of Force-sensitive children.
