- Okinawa is a part of Hawaii, where Japanese tourists go every year. They spend the rest of the year saving for these trip which they spend singing in Karaoke bars and hiding from the sun under their umbrellas. They like to show that they can go on vacation to sunny places and still stay white. If they get a little tan, Japanese women (but men also sometimes) buy a lot of chalk to whiten their skin. As a contrast, they blacken their teeth with octopus excretion. For those who cannot afford this expensive luxury, the human version (although a little brown) is used. Some people go on a special diet to keep their excretion as dark as possible. In Okinawa, there is a lot of algae, which is very effective to attain this dark tone.