I created this lego minigure wall stand to maximize display with minimal material. It is connected behind the legs.
This stand only works for minifigures that don't have accessories in their back. I have created another design for that kind of minifigures. Check https://www.thingiverse.com/thing:3577445
There are 2 designs.. one to be used with screws and the other with glue, double side tape o maybe a magnetic tape.