Just a few tweaks to original https://www.thingiverse.com/thing:789015
1) Moved screw access holes to outside.
2) Made base bigger to fully cover camera housing.
3) Added separate back part (superglue on the back)
4) Removed text
Glue the back part onto the adaptor with CA glue, by aligning the square hole with the round hole. Remove face plate from the webcam and set the three screws aside. Unscrew circuit to access lens mount from back. Unscrew lens mount. replace the circuit board and re-fasten with the circuit board screws. Use faceplate screws to attach this adapter plate.
TIP: Put a bit of black tape over the green LED to prevent light polluting the sensor. It can also be turned off with software, or removed completely by desoldering.