Holder for filament 3D models

Filament spool holder

Dual/Unlimited Filament Holder

Another, by simple, filament holder ...

DaVinci Inside spool holders

Filament suport

3-in-1 filament holder

xyz filament holder with guide

Part of the car navigator.

Filament spool holder

PLA Filament carousel holder - SOLIDWORKS

Extension Arm for Makerbottable Simple spool syst...

Flash Forge Dreamer Spool Holder