Gambling device

From Memory Alpha, the free Star Trek reference.

The gambling device was a purple, hand-held spherical gambling toy covered by angles and curves, as if fashioned from exotic seashells. The gambling device fundamentally altered the laws of probability so that those who won would experience good luck, and those who lost would experience bad luck.

A person plays the device by pressing a key located on the surface – winning was signified by glowing accompanied by a humming sound, losing by a whistling sound only. It was not known how to turn the device off, and its power source was assumed to be internal.

In 2370, Cos brought the gambling device to Deep Space 9 where it was acquired by Martus Mazur after Cos's death. After Quark offered to purchase the device for use in his casino, Martus realized that the device could bring him profit. He replicated several larger versions of the device and opened a competing casino, "Club Martus", across the Promenade from Quark's. These large-scale devices caused an abnormal amount of unusual coincidences and minor accidents on the station. After discovering that they caused 100% percent of the neutrinos in close proximity to rotate clockwise, the devices were destroyed via phaser fire by Commander Sisko and Lt. Dax. (DS9: "Rivals")