While the practice of shaving one's private bits has been around for ages, the 19th century British took it to another level. It was common at this time to cut off some of your pubic hair and give it to a lover as a gift.
Men would even affix this hair to their hats. When not displaying it in such ways, keeping a collection of it from one's various lovers was a thing. For instance, King George IV kept his collection of women's pubes from his various mistresses in a snuff box. St. Andrews University in Scotland currently possess this snuffbox filled with pubic hair.