Do you have a rice field and too much time on your hands?
Then why not spruce it up with some artwork?
The Pink Tentacle website explains more:
Each year, farmers in the town of Inakadate in Aomori prefecture create works of crop art by growing a little purple and yellow-leafed kodaimai rice along with their local green-leafed tsugaru-roman variety.
They’ve been doing this since 1993. Well, why not, eh? It must pass the time.