Great Harry Potter themed print from scratchhax on Thingiverse:

This is a moving Mad Eye Moody eye patch for my mad eye costume. You can find all of the source files as well as a build log at https://cyborgworkshop.org/2016/09/07/mad-eye-moodys-magic-eye/ and a video of the eye moving here https://www.youtube.com/watch?v=8OwszGGdZPA and here https://www.youtube.com/watch?v=rj3u3MQmCE8