Gastrulan Gastrulans were sentient gastropod s native to the planet Gastrula in the Outer Rim Territories . Standing just taller than Sullustans — who averaged a height of 1 . 5 meters — Gastrulans sported four short arms and spotted , bulbous heads . They had eyestalks on either side of their heads , located just above the neck . During the Galactic Civil War , the Gastrulans became the sole clients of Captain Bungo Bung ' s Great Bantha Breakfast Biscuit Run , an endeavor to earn credits for the Sullustan by selling Bantha Breakfast Biscuit s , a popular snack food , to those unable to obtain them . Two weeks after the Run was established , the Gastrulans were threatened by the ravenous Giant Amorphous Bantha Breakfast Biscuit , a mutated version of the snack that evolved when the preservatives in the biscuits came into contact with Gastrula ' s atmosphere . Biology and appearance . Gastrulans were sentient gastropod s that stood slightly taller than a Sullustan of average height — around 1 . 5 meters — and possessed four short arms attached to their torsos that ended in paddle like hands with opposable thumbs . Their heads were bulbous , with a thin mouth that stretched across their faces and slightly down their necks . Gastrulans had dark spots across the back and front of their heads , as well as down the backs of their necks . While they had no visible nose or ears , they did have eyestalks that protruded from the sides of their head , near to where it joined their necks . Society and culture . The Gastrulans hailed from the planet Gastrula , located within the Outer Rim Territories . Gastrulans had knowledge of both clothes and weapons , as the two Gastrulans encountered by Bungo Bung , a Sullustan freighter captain , during the Galactic Civil War , wore clothing and wielded long armed pikes . Other beings in the galaxy were aware of the existence of the Gastrulans , and also the location of their homeworld . For their part , the Gastrulans knew of the outside galaxy , especially being aware of the popular foodstuff called Bantha Breakfast Biscuit s . History . During the Galactic Civil War , the planet Gastrula was visited by the Sullustan Captain Bungo Bung and his droid co - pilot , 42 - RST . They had come up with a scheme to make money by selling Bantha Breakfast Biscuits , produced by the galaxy - spanning restaurant chain Biscuit Baron , to those worlds that had no access to them . Upon landing in their ship , the " Chubby Gundark " , 42 - RST struck a deal with the native Gastrulans to sell them their cargo of a single box of the biscuits . Over a two - week period , Bung and 42 - RST cleared several hundred thousand credits working the route between the planets of Sullust and Gastrula , which they named the " Great Bantha Breakfast Biscuit Run . " However , unknown to both the crew of the " Chubby Gundark " or the Gastrulans was the fact that the preservatives used in creating Bantha Breakfast Biscuits reacted negatively with certain environmental conditions , such as stale air and the atmosphere present on Gastrula . These conditions caused the Bantha Breakfast Biscuits to mutate into the Giant Amorphous Bantha Breakfast Biscuit , a ravenous amoeboid creature that set out to devour anything in its path . At least one of these creatures evolved on Gastrula , where it began eating everything it could find . Behind the scenes . The Gastrulans were created by James Anderson for his comic strip " Bungo n ' Rusti Get Carry - Out " , which appeared in issue 11 of the " Star Wars Adventure Journal " , published by West End Games in 1996 .