Will Miss #513 - culture of luck

When I was a kid, I remember finding an odd fuzzy, finger-shaped thing with a metal cap and a beaded key chain on one end at my grandparents' home. I asked what it was and my grandmother said that it was a rabbit's foot. I asked her why she would have such a thing and she said it was for luck. These days, I doubt that many people have the decapitated body parts of unfortunate lapine creatures