I needed a webcam and had a Raspberry Pi Zero and a couple of camera modules. Using "Show-me Webcam" you can covert a PiZero into a USB webcam.
Depending on the camera:
Let me know in the comments if anyone wants a build guide for this, I think it isn't that hard to build but I designed it sooooo LOL
Added the 3MF file where I increased the fill of the 2 stand parts mostly to increase the weight of the parts a little.
The author hasn't provided the model origin yet.