$19 Animated Schleswig-Holstein German State Flag Low-poly 3D model by dragosburian. Available on CGTrader with 4548 polys and 6286 vertices. Check it out on CGHub.
STL (Stereolithography, filesize: 2.2 MB), OBJ (OBJ, filesize: 3.08 MB), BLEND (Blender, filesize: 4.53 MB), DAE (Collada, filesize: 1.91 MB), FBX (Autodesk FBX, filesize: 2.06 MB)