Crown hologram, can be used also to create different shapes of holograms.blend, stl, fbx, obj, mtl, x3d.
BLEND (Blender, filesize: 1.12 MB), OBJ (OBJ, filesize: 30.3 MB), FBX (Autodesk FBX, filesize: 676 KB), STL (Stereolithography, filesize: 1.37 MB)