The financial planet Muunilinst, nicknamed 'Moneylend', was first mentioned in the 1997 Star Wars novel "Specter of the Past" by Timothy Zahn. This pre-dated the introduction of the Muun species in the form of San Hill, leader of the InterGalactic Banking Clan, in Star Wars: Episode II - Attack of the Clones (2002).
Muunilinst is defended by a fleet of Geonosian fighter ships. Lucasfilm insisted that this type of vehicle was included because a toy version was released around the same time.
Art director Paul Rudish based the look of the Muun city of Harnaidan on that of the United States dollar bill.
On Muunilinst, a planet associated with the Interglactic Banking Clan, their IG-227 Hailfire Droids serve as backup to the Trade Federation's Battle Droid army.