A neck brace. Used by sew happy melo-dramatic American scumbags that try to take advantage of every angle they encounter. The "Jew" part is significant because they are widely known for their ability to take advantage of any monetary situation they can at everyone else’s expense.
(After a very minor car accident)
Driver 1: Since there is only very minor damage, let’s not go thru the insurance company on this...
Driver 2: Owwww my neck!
Driver 2's spouse: (Whispers) Don't forget the neck brace when we take this guy to the cleaners (court)
Driver 1 After they arrive in court: Oh take that damn jew collar off, you and I both know you couldn't have possibly been injured.