This is a higher-density implementation of some of the storage solutions I've seen for integrated circuits. It fits the typical 7400 series chips in PDIP-8, PDIP-14, PDIP-16, PDIP-20, etc packages. They stack on top of each other when laid flat. I haven't made a cap or anything for it yet. It holds them in well enough anyway. It has some notches in the back for hanging on a wall or something, but haven't gotten around to making hooks for it yet.
The author marked this model as their own original creation.