A Bajoran cabasa
The Bajoran cabasa was a small percussive musical instrument that played a role during Bajoran births.
For Bajoran women, it was important to be relaxed during birth, so the mother's relatives would play different instruments in a repeating rhythm to provide a relaxed atmosphere.
During Kirayoshi O'Brien's birth in 2373, the Bajoran woman Y'Pora, who was trained in childbirth, played a Bajoran cabasa. (DS9: "The Begotten")