Basotile

From Memory Alpha, the free Star Trek reference

A Basotile is a complex art form, created by the Rodulans. In 2366, Kivas Fajo owned the first one ever created, and claimed that it was centuries old. (TNG: "The Most Toys")

A similar basotile was kept in storage in Deep Space 9's assay office in early 2370. (DS9: "Necessary Evil")

Another basotile was on display in the Symbiosis Commission building on the Trill homeworld. (DS9: "Equilibrium")

Bahrat kept a basotile in his office aboard the space station close to the Nekrit Expanse. (VOY: "Fair Trade")

No further mention was ever made of the Rodulans in later episodes, so it is unclear if their civilization still exists or not.