Muck nest

Muck nests were a type of nest made by the sentient Toydarian species on their homeworld Toydaria. The Toydarian junk dealer Watto had a shop in the city of Mos Espa on the planet Tatooine that was built with a distinctive pointed dome top that evoked the muck nests of Toydaria. Watto maintained his nest in to the dome, and used polyfibre netting to maintain a swamp muck lake atmosphere in the nest.

Behind the scenes
Muck nests were first mentioned in the 2015 reference book Ultimate Star Wars.