Ebay offers Nisaku Mikadukigama 7.5" Grass and Weeding Sickle for $7.50 (reg $14) with free shipping.

Product Description:
Bring quality and reliability to your garden work with the Nisaku Mikadukigama Grass Sickle. Designed for weeding and cutting tall grasses, this essential tool features a sturdy wooden handle and a stainless steel blade with a precision edge.   
Main Features 

• Lightweight, this Japanese sickle can be used with minimum exertion to cut long grass and standing weeds
• Designed with an ultra-sharp stainless steel blade and long wooden handle, the Nisaku Mikadukigama is perfect for cutting down grass and weeds
• Attractive and comfortable hardwood handle is ferruled to the blade
• Blade Size: 7.5 inches; Handle Size: wood, 14.25 inches; Weight: 5.7 oz.
• Made in Japan. Authentic Nisaku/Tomita Manufacturing. Exclusively Distributed by Snow Joe, LLC