For my Computer Setup I needed to mount a third monitor to this dual setup(https://www.amazon.de/gp/product/B00WX0WP7Q/). I made a clamp brick for a 40 mm PVC Pipe to fit the excellent VESA mount from Hacky97(https://www.thingiverse.com/thing:1647943). You need to print 2 of these and fit them with some cable ties. Use some 3,5x17mm wood screws to attach the Base to the clamps an pierce the cable ties.
The author marked this model as their own original creation.