Check out helmet high poly sculpt 3d printable 3D model 99 3D model on CGTrader for $9. High-quality Polygon mesh mesh by hogok: 14000000 polys, 3000000 vertices.
ZTL (Zbrush, filesize: 22.1 MB), OBJ (OBJ, filesize: 62.7 MB), STL (Stereolithography, filesize: 116 MB)