$19 Animated Slovakia Flag Low-poly 3D model by dragosburian. Available on CGTrader with 6286 polys and 4548 vertices. Check it out on CGHub.
STL (Stereolithography, filesize: 2.2 MB), OBJ (OBJ, filesize: 3.1 MB), BLEND (Blender, filesize: 4.54 MB), FBX (Autodesk FBX, filesize: 2.07 MB), DAE (Collada, filesize: 1.92 MB)