Modular (or that's the plan :) ) hanging storage/organizing bin setup. It is designed around these small, cheap tins that are 65mm diameter and 35mm depth (the "tin" model attached is an approximation of them). Each 'rack' holds three tins, and a set of hangers holds six 'racks'. So the full assembly holds 18 tins. If you don't have, can't find, or don't want to look for the tins, I suppose you could just print the tin model and run with it.

The hangers are intended for hanging from standard wire shelving (see picture). I only have a few first iterations of parts printed thus far, but I'm pretty pleased with the stability and access.