This is my cover replacement for Logitech C270 Webcam. All you need to do is disassembly the original webcam and remove PCB electronics board. The board is fixed in the new housing using the original screws.
You can watch this video https://www.youtube.com/watch?v=v-gYgBeiOVI
to see how to disassembly the original webcam cover.
FreeCAD files are also included.
The author hasn't provided the model origin yet.