Do they still make those things into a belt buckle?
BTW, in Denver about 10 years ago a little old lady used one of those to ward off a couple of young gangsters trying to take her money in a parking garage. If I remember the incident correctly, they approached her and demanded five bucks, She replied, as she reached into her purse and pulled the little thing out " You want five? Well... I'll give you five!". She won.