I designed this to allow displaying vtuber standees with a much smaller footprint than with the included bases. 

The STL files display 3 rows of them with 2cm steps between each row. I sized the slots to 3mm which works for the new Phase Connect standees.

You can use the scad file in OpenSCAD to customize the display to your needs if your standees are different thicknesses, or you want to change the number of rows and how they're spaced.

Added V1.1 of the OpenSCAD file that allows each tier to be a different width for handling multiple kinds of standee.

Added V2 of the OpenSCAD and the StandeeDisplayChock that use an M3x5 grub screw or a M3x8 screw to clamp the standee in place, so that the display doesn't have to be precisely fit to the standee.