I don't want to threadjack, but if you don't mind the anime relation, there's actually a Sailor Moon gashopan scythe that's 1:6 scale:
item id link
photo with doll
I imagine with a bit of clay, paint and glitter and maybe some cutting you could de-SailorMoon it and make it into a generic scythe.
item id link
photo with doll
I imagine with a bit of clay, paint and glitter and maybe some cutting you could de-SailorMoon it and make it into a generic scythe.