This is an animated fan that spins its blades. The Blend file contains the animation as well as the FBX file. it is easy to rotate the blade yourself and it is very easy to recolor the fan.
STL (Stereolithography, filesize: 4.82 MB), OBJ (OBJ, filesize: 5.42 MB), FBX (Autodesk FBX, filesize: 1.97 MB), BLEND (Blender, filesize: 5.76 MB)