device-hl2.3dm 
https://sketchfab.com/3d-models/hololens-2-3dd665394e6f4b62ba16338e55828ddd
Creative Commons Attribution

device-quest.3dm 
https://sketchfab.com/3d-models/quest-3-e5c334a9598c4e85bb182eebf15a2e32
Creative Commons Attribution