Looking for a scythe

Anyone know where I can get a scythe in Japan? We desperately need one for keeping the weeds around our rice field under control, as well as clearing the weeds from our sunflower field. For some reason, they never caught on in Japan and I can't find any without ordering them from Europe (quite expensive).

These photos are from the neighbor lady teaching us how to harvest rice and tie the bundles by hand. We had planned on having her show us for a few minutes, but ended up harvesting almost all of one of our paddies. Harvesting by hand is actually very fun and satisfying, and it didn't take that much longer than a neighbor using a machine. The only thing I feel bad about is that our next-door neighbor went to a lot of trouble to lend us a machine for harvesting and bundling the rice. It looks like we wont be using it.

Today was pouring rain, but I can't wait to get out there again tomorrow and finish another field. (I only almost cut off one finger yesterday! - Our teacher told me to chew up some yomogi leaves and tie them over the wound... )