i made this box to organize my purge calibration papers made from https://makerworld.com/en/models/112380?from=search#profileId-129748 so i can re read them when i need them again , you can both store them vertically or horizontally .

in the 3dmf file you have 3 plates :

combined plate : both in one but you purge some material

lid and box on 2 diffrent plates : print them seperately if you wan to save some material (filament color change on layer 11 for the lid)