A horga'hn on display at Risa (2366)
A horga'hn is a statuette that symbolizes fertility on Risa. It comes in many sizes, from small carvings to statues to a hotel with a giant horga'hn built into it. Carrying one indicates that one is seeking jamaharon, a mysterious and pleasurable sexual practice native to that world.
A stylized horga'hn was used as a door switch in several apartments on Risa in 2153. (ENT: "Two Days and Two Nights")
In 2366, Commander Riker asked Captain Picard to acquire a horga'hn for him while the captain vacationed on Risa. Fellow vacationer Vash spotted the item and got the wrong idea about Picard. (TNG: "Captain's Holiday")
On the way to Risa, Quark gave Dax, Bashir and Leeta each a horga'hn, but made a point of not giving one to Worf. Once there, he eagerly tested the practice by displaying two horga'hn to a pair of Risian females, explaining when asked if he sought jamaharon, "I seek whatever you've got." They replied with the traditional Risian greeting "All that is ours is yours", to which Quark replied, "I'll take it!" (DS9: "Let He Who Is Without Sin...")