Siphoning balloons were used by Tibanna tappers to siphon Tibanna gas from a Tibanna gas platform. After siphoning off the gas, tappers would use a tug to move the siphoning balloons to another location.
In 36 ABY Jaina Solo and Zekk prevented a group of membrosia-addicted insectoid tappers who were using a tug and three balloons on Bespin.