A bracket that clips to the side of Ikea Vesken shelves and trolleys, that can hold a swatch or tag. It can be used to show what the filament looks like, unobstructed by the container it may be in, as well as a placeholder to know where to return the filament to when you're finished printing with it.
I use both Lock & Lock and PrintDry containers to store my filament, and Vesken Shelves to keep them organized. I've also created a Filament Container Stand to make sure they stay upright.
This model includes several options for swatches, tags and tiles: