M42 Screw Mask for ZWO ASI294

This is a mask that threads into the M42 adapter for the ZWO ASI294MC Pro camera.  The mask covers shiny chrome screws so they don't reflect light back towards filters or lens elements within the telescope.  (fixing bad design)

I printed this using matte black PLA.  It is 3mm thick.  It fits nicely between the camera and the threads on the ZWO filter drawer.

If you print and use this, please let me know.  I am guessing most people would just use some black tape, markers, or paint.  I am genuinely curious if anybody else thinks this is useful.