A remixed version of the base part from of the full Smartphone holder for USB microscope by gmag11 on Thingiverse: https://www.thingiverse.com/thing:3255765
I needed to change the base to fit the top of this aluminium stand (Ksrnsne 1PCS New Aluminium Alloy Stand Bracket Holder Microscope) I got from Amazon: https://www.amazon.com.au/dp/B0B4BZBYKJ
The author remixed this model.