Boar's Tusk Rattle from Heuneburg

I wrote a few years ago about the Celtic Princess of the Danube, a spectacular burial dated to 583 BCE excavated in Germany. I was just reading an update article at the History Blog, and saw one object I had not seen before: this piece of "jewelry" made from boar's tusks and metal jingly bells. This looks to me like a shaman's rattle.