I have a number of relatively cheap plastic storage boxes that I use for a variety of purposes, one of which is to store wargaming models.
The models can go straight into the box's compartments (I've removed the dividers from this one), but that's not completely satisfactory — the models tend to get shoved around a bit, and they can't be stacked without risking damage to the ones on the bottom.
I made my first ones out of heavy grey card, about 2.5mm thick. The later ones are all made from 3mm MDF.
The card versions have one advantage: the PVA I use to glue them together sets quite quickly. However, cutting the thick card with a craft knife is a bit laborious.
Since I'm lucky enough to own a small table saw, cutting the MDF components is as easy as pie, and repeatable precision is simple. However, the MDF isn't as absorbent as the grey card, and as a result the PVA takes a lot longer to go off. The sabot is more solid than the card version, but for the weights involved, that's not really an issue.
It would be an ideal project for a small laser cutter, but I don't have one of those. One day maybe.
The main reason to use a system like this is that it makes the storage modular. I can secure everything for transport with chips of soft foam, and get only the items I want in and out of the box without having to disturb everything else.

















































