The necklace with a "Dum Dum Dum Dum" soundtrack...

"The jeweler Eddie Borgo," writes the New York Times (Sunday Styles, Septermber 12, 2010, p.3) "based his Horror Collar [left] on the Mayor of Halloween Town in Tim Burton's 1993 film The Nightmare Before Christmas. 'His wild mood swings make his cone head spin around from a happy face to a scary one,' M. Borgo explains. 'It's a figurative representation of a two-faced politician.'"

Yeah, okay, sure. And that has what, exactly, to do with this Jaws necklace?