Gifts for Dad who uses X-plane

Hey guys I would really appreciate some input for gifts for my father. He uses a version of X-plane that is a couple years old and almost always flys helicopters (he's an ex-flight nurse) and i was wondering if there was anything fun I could get for him like if you guys would recomend a VR headset, separate collective, just a newer version, etc. He has a logitech pedal and joystick with the little flap for the throttle right now. Anything you could think he would like or things that you would like would be great to hear!! Thanks in advance