A Japanese traditional toy, Kendama is becoming big boom in America. I have once played Kendama when I was in elementary school, but I never continued playing. According to Wikipedia, Kendama consists of three wooden cups of different sizes placed on the center of a wooden spike, with a smaller cup at the spike’s base and a ball connected by a string to the center piece. We just catch the ball on the each cup, or stick into a hole of the ball with the spike. It needs effort and patience because of simplicity, but difficulty of Kendama, so at least I got tired of playing. However, American becomes to create free style of enjoying Kendama recently even they didn’t know how to play it. They create new techniques or design of kendama. The video was uploaded on Youtube, and Kendama became popular for American street boys. It is interesting that Kendama is one of re-importation cultures.