Options for cup holders

Inspired by the Knights, who offer a great looking cup holder option I photographed some alternatives I tried in the past.

First their option, the best looking so far:
https://www.fiatcoupeclub.org/forum...-3d-printed-coupe-cup-holder#Post1655103

Also curious how others attached a phone.

3D printed cup holder.

Or DIY with some foam and a hole saw, still working today.