Reproduction vintage black scaredy cats are grouped with an old wrought-iron plant hanger for an old-fashioned Halloween display. Black cats have figured prominently for centuries in folklore and superstitions. Not surprisingly, October is referred to as Black Cat Month.
According to Patti Wigington, About.com Guide to Paganism / Wicca, a strange black cat on the front porch brings good fortune in England's border countries and southern Scotland.