A basic cupholder that I made up for my Nissan Patrol Y61 / GU. STL and gcode file attached. I printed in grey PLA and it went ok, but the bottom seemed to shrink and look funny on mine - but you cant see anyway once it is installed. Fix it with screws through the tab bit.
You'll have to flip it base down in your slicer.
The author marked this model as their own original creation.