Kumamoto is a major producer of igusa, the material used in the production of tatami. It’s not normally considered to be a food. The idea of making edible, tatami-flavored chopsticks seems wacky enough to be an April fools joke, but this seems to be legit, at least as far as I can see. The YouTube video in the announcement even has English subtitles.

– Kirk

http://www.prnewswire.com/news-releases/kumamoto-japan-develops-worlds-first-tatami-flavored-edible-chopstick-made-out-of-igsa-rush-grass-300449209.html