This was inspired by Mini Filament Sample Spool by max3d | Download free STL model | Printables.com. But it turns out that was too small (in inner diameter) and the samples that I normally purchase from Atomic Filament come pre-rolled. So i decided to create my own version. It is a two-piece design and requires two drops of glue to attach. Now I can get my spool samples into these bad boys, throw them in the dryer or store them away as I need.
Printed in AtomicPLA with variable layers, I added a picture of the design that inspired this for comparison.
The author hasn't provided the model origin yet.