I was at one of the larger asian grocery stores here in Honolulu the other day (Don Quijote - yes, i know...that's how they spell it) and they had these jars of green rice. All the writing was japanese, so I have no idea what is was, what is is used for. I don't know if it is soaked in something to turn it green... but I'm sure curious. If anyone has any answers I'd love to hear them. A quick google search turned up nothing.