Fishing seems to be another hobby where there are lots of different pieces. As a fly fisher who has also dabbled in making one's own flies, there is a lot of common with the challenge with electronics parts .

Expanding tackle boxes are probably the "traditional" design.  But they're made in all sorts of configurations. The commonality is that portability is an important factor and lots of the designs are toolbox-esque.

I sort of like the idea of being able to trek with my hacking parts but have no idea why I would need an integrated cooler.

Crafters have long repurposed fishing boxes for organization purposes.