Inspired by David Hunt's blog post showing how to use a Raspberry Pi Zero with a Pi Camera as a USB Webcam, as well as justinschuldt's gist, I wanted to make my Raspberry Pi do the same thing, but ...
You want a cheap webcam: The best budget webcam is the Logitech C920, and it also offers 1080p capture. It's just nowhere near as refined as the Facecam MK.2.