How to use "nickel" in a sentence

Vivienne was a nickel duchess

That was the term by which casino employees still referred to local, elderly women whose social lives revolved around an obsessive interest in one-armed bandits, even though the nickel machines were pretty much ancient history

Even these days, when most machines could be played with electronically validated value cards, the nickel duchesses wore black gloves to keep their hands from becoming filthy after hours of handling coins and pulling levers; they always sat on stools while they played, and they remembered to alternate hands when operating the machines in order not to strain the muscles of one arm, and they carried bottles of liniment just in case.

Besides, living in Sacramento, she wouldn't be a nickel duchess any longer; she wouldn't be anyone special; she would be just another elderly lady, living with her daughter's family, playing grandma, marking time, waiting to die.