When showing a Hackney Horse they’re required to be braided. The old timers told me they should wear the gold standard of twenty-one braids down their neck. They told me it’s to show the length of their neck and refinement of their appointments. I think there may be more to the number 21 but then again I’m just guessing. I’ll research this a bit and see if my curiosity gets satisfied. Meanwhile I’m going to start whistling now as I make snakes which will shortly turn into 21 braids.