The Test Badge is used for indicating which material and color is currently inside the PTFE tube and the enclosed spool holder.
It can be used as a filament sample badge and a puzzle shaped base can be used for displaying your filament collections!
Also, you can make the badge with the base as a key chain too!
Finally, you can make it as a magnetic badge by pushing a D8 x 3mm magnets and stick them on your refrigerator to show off if you do not want to use the base.
Use 0.2 layer height and your own settings is good enough.
The author hasn't provided the model origin yet.