My USB hub was leaning and would topple when I added more than a few cords or accessories.
This simple slip-on stand keeps it upright. Four worked for my setup, but you can likely get by with fewer.
I printed mine with a .6 nozzle and PLA, but it should work fine with a .4.
Made for a hub with the following dimensions (see photo):
Width: 35mm
Side height: 12mm
Upper (angled) width: 10mm
Angle: 135 degrees
The author marked this model as their own original creation.