Samurai Jack Sword Low-poly 3D model is available on CGTrader for $8. Original author: edplus. Specs: 3696 polys, 1894 verts.
STL (Stereolithography, filesize: 161 KB), OBJ (OBJ, filesize: 150 KB), FBX (Autodesk FBX, filesize: 192 KB), DAE (Collada, filesize: 223 KB)