This is a printable version of the flail used by the Witch King of Angmar from LOTR. You can scale this to any size you want. I would suggest using a real chain to hold the handle and flail body together. I printed several of these and created a hole in the interior of the model to fit a wood dowel. That's how I attached a metal O-ring and the chain to each part. The picture of the completed flail was printed using a Creality CR-10s FDM printer, painted, weathered, and assembled from a metal chain that I bought at the hardware store. The final, printed model is impressive. I am including the STL files as well at the STEP file.