Here's a 3D-printed lens CAP for the Insta360 One R (360 edition)
(360 lens cap) 3D print ready STL file download link ⬇
http://medelis.se/3D%20models/Medelis%203D/Insta360oneR%20%20360%20edition%20cap.stl
STL file not for resale (NFR)
Print at Home or Work for use