The webcam as seen from underneath, attached (sorta permanently) to the mounting bracket.

I say "sorta permanently" only because, once you have it assembled, you won't want to take it apart again. For use on a tripod, I would buy a sacrificial quick shoe for the purpose.

And yes, the camera head is upside down on its original mount. I disassembled it to see where I might pot in a threaded insert for the tripod mount, and then put it back together the wrong way. This same mounting approach should work with the original mount in its proper orientation, though.

View the resulting timelapses here.