Christmas hat 2

So why this quaint tradition? Where do these hats come from? The answer is the Christmas Cracker. A Christmas Cracker is a cardboard paper tube, wrapped in brightly coloured paper and twisted  in two ends.

There is a banger inside the cracker, two strips of chemically impregnated paper that react with friction so that when the cracker is pulled apart by two people, the cracker makes a bang.