An Elanin singer stone was a little stone that emitted sounds when it was touched by a living being. It was said that it sang a different song for every person.

The Dreman girl Sarjenka was especially fond of the singing stone.

After her planet was saved and her memory of the encounter with the crew of the USS Enterprise-D was erased, Data gave an Elanin singer stone as a present to Sarjenka. (TNG: "Pen Pals")