I used a cover by Airjohan71 Dus as a bracing. The holder and the text tags were printed PETG with a 0.4 mm nozzle without supports, then the text was colored with a white Edding 751 marker. The color sample tags were printed with the appropriate filament, although due to the poor quality of the camera image, one can limit oneself to the primary colors printed with any plastic.
The author remixed this model.
The cover has been slightly modified - a chamfer has been added to simplify installation.