Check out Unicorn Minecraft Voxel Low-poly 3D model on CGTrader for $4.99. High-quality Polygon mesh mesh by zepte.
STL (Stereolithography, filesize: 542 KB), OBJ (OBJ, filesize: 148 KB), DXF (DXF, filesize: 134 KB), BLEND (Blender, filesize: 78.1 KB), MS3D (MilkShape 3D , filesize: 78.1 KB), DAE (Collada, filesize: 134 KB)