UNC comp. sci. class 239 "Exploring Virtual Worlds Seminar" created many interesting and different VR projects.  Many with interactive haptic feedback devices like the virtual skeet shoot to your left.

  In this example, we have mounted one hiball on an HMD and the other on a toy shotgun. This setup was used for a project by Arun Neelamkavil for a skeet shooting simulation.  Many others from force feedback clay sculpturing, virtual root canal, haptic baseball catching added to the diversity of projects in this course.