HHG-RX, an RX-series pilot droid, operated in the initial period of the Galactic Civil War. A common sight was it thumbing for rides at Spaceport THX1138. It was recognized by its hitchhiking gesture and the pendant it carried, which looked like the Marksman-H combat remote.
This droid, HHG-RX, appeared within the "Grim Grinning Droids" area of the waiting line for Star Tours: The Adventures Continue at Tokyo Disneyland. In this area, three droids imitate the stances of the three ghosts from Disney's Haunted Mansion attraction. Its name, visible on a nearby container, is a play on words related to its actions ("HHG" representing "Hitch-Hiking Ghost").