I created a versatile filament spool holder using Gridfinity. When spools are lined up, you can see the colors but not the brand and the filament type. When they are sideways, you can see the brand and type but can't see the colors. I decided to create a way to angle the spools to show the color, brand, and type. 

The grids can be assembled:

• Side by Side

• Left facing

• Right facing

• Left and Right "display" mode

I use old PLA at 2 walls, 15% infill