Check out SciFi Shape Object Low Poly Low-poly 3D model 26 3D model on CGTrader for $7. High-quality mesh by 3dmodelbase.
STL (Stereolithography, filesize: 1.33 MB), OBJ (OBJ, filesize: 2.82 MB), 3DS (3D Studio, filesize: 715 KB), C4D (Cinema 4D, filesize: 1.3 MB), FBX (Autodesk FBX, filesize: 9.91 MB)