Voxel Tombstone Set 1 3D model is available on CGTrader for $7. Original author: adamawyh. Specs: 304 polys, 457 verts.
STL (Stereolithography, filesize: 11.9 KB), OBJ (OBJ, filesize: 243 KB), FBX (Autodesk FBX, filesize: 271 KB), GLTF (glTF, filesize: 136 KB)