I had a couple of these Mini Projector mounts lying around and I was able to pull the ball head off of one and I created this adapter so I could mount my webcam. It's extremely unlikely you'll be in the same situation but if you are here you go. I will say if you're looking for a ball head mount that you'll set once for monitoring prints this is about as small as you can get and cheaper than other options so not a bad fit.
The author marked this model as their own original creation.