I embarrassed myself by watching this. Japan's major exports seem to be cars and electronics but inexplicable insanity seems to be their biggest domestic industry.
Years and years before Jackass, I saw a traveling group who performed under the name "The Tokyo Shock Boys" do this exact same trick with chopsticks... and then a cactus. I also saw one of them pull a man around the stage on a desk chair using his balls.
-1 for having seen this trick before
another -1 for her weird butt