Whipped up a simple stand in OpenSCAD.  Currently configured for 2 puck screens of ~58.5mm diameter but can be reconfigured via the provided .scad file.

The slot width is .75mm which works well for .25mm screens, but may need to be increased for thicker screens.

Printed on PETG (but should be fine with PLA also).

• 0 top/bottom layers
• 15% gyroid infill