Filament dry box w/ desiccant storage in the center. Don't waste desiccant drying extra space. this box has just enough room to hold a variety of filament spools and have minimal dead space to allow the most efficiency when keeping filament dry.
As you can see my filament was in dire need of this box as there were a lot of defects from extra moisture haha
Edit 1: Added a thicker lid in case you have warping issues, this with more infill should mitigate or remove it
Edit 2: Added tool to remove lid
Edit 3: Decreased height of center female threads and increased length of lid threads by 7mm(ish) to add room for printing error. should further help any warping in the lid when printing.