10 of the Weirdest Spa Treatments That Money Can Buy

A traditional Japanese treatment using nightingale droppings (so, bird poop) is one of many luxe options at Shizuka New York Salon and is said to help exfoliate your skin while keeping it soft and smooth. Nicknamed the "geisha facial," using nightingale feces on the face is quite popular in Japan, and when it's finely ground and mixed with rice bran, it helps to keep your skin wrinkle-free.