Kayan tribe, Myanmar
Women of the Kayan Lahwi tribe in the Shan state of Myanmar love the long-necked look. You've probably seen pictures, as this particular tribe is well-known for wearing neck rings made from brass coils. They start at the age of 5 and replace the coils with longer ones as they grow. The new coils push the collar bone down and compress the rib cage. (In truth, the necks aren’t actually getting longer, but the collar bones are being pushed down.) There are many theories behind the neck coils including the idea that slender necks are seen as more feminine, or that the coils give the women a dragon-like look, which is important in Kayan mythology.
Let’s just say NO ONE from the Karo Batak tribe is going to get laid in China. Since the 11th century, the Chinese have fetishized unnaturally tiny feet on women to the point where women painfully bound their trotters to prevent further growth. Known as “lotus feet,” the ideal length was about 4in long. For ADULTS. It became a means of displaying status and wealth, although some argue the real reason was that walking with the strained gait of tiny feet strengthened a woman's vaginal muscles, making sex more enjoyable for men. Either way, foot binding died out in the 20th century because of things like lifelong disabilities (NBD) although there are still a few remaining elderly Chinese women with exceptionally small feet.
Karo tribe, Ethiopia
The men of Ethiopia’s Karo tribe show their manliness with scars, because well, scars represent killing enemies from other tribes, naturally. Here's the good news though (sorta): you don’t actually have to kill anyone! No, you can scar your OWN chest as a metaphor, and it’s just as hot. Ladies get in on the action, too, by scarring their torsos and chests, which is seen as sensual and attractive.