Thrift Store Treasure

I found this image on Pinterest. The individual who posted it reported that it is a 1,000 year-old "Indian artifact" taken from a Native American burial site in Oklahoma. I wonder if it is true. No further details are provided so I can't say who discovered the item or how it was authenticated. Does this sort of thing happen a lot? There's an idea for a TV show: Lost Treasures of Thrift Stores.