Sciel's scythe from Clair Obscur: Expedition 33 now in 3D printable form for cosplay / prop etc.!
Ready to print and sliced!
Length: 150cm / 4ft11"
For support inside you'll need 8mm (~0.3in) diameter dowel/pipe. Lengths of each piece can be found from the images.
Not for physical resale, if you're going to do it anyways at least ask or shame on you!