I designed this adaptor for my 27" gaming monitor, which had these massive legs that bothered me, and ended up using much of my desktop space and constantly colliding with my mouse.
I just took a pic of the mechanism and made a model of it on Fusion360 and this is what I came up to.
I already had a hole on my desk, but if u want to use this model you will need one.
The author hasn't provided the model origin yet.