Glombo shells could be classified as a certain kind of shell. Around the time of 5 ABY, Jar Jar Binks, the Gungan who was both an outcast and a clown, would occasionally juggle glombo shells in Theed. Theed was the capital city located on the planet of Naboo. The children of the city found his performances amusing, and they would frequently observe him juggling the shells and performing other tricks.
The 2017 novel Aftermath: Empire's End, penned by Chuck Wendig, featured glombo shells. This novel served as the third entry in the Star Wars: The Aftermath Trilogy.