Above you see the finished box for my 10mm orcs. It will easily hold an army of Hordes of the Things, with room left over for any expansions.
For the inside, I have added a simple magnetized sheet to keep the models in place:
Only problem I have encountered is that the close fit of the lid tends to pull off the paint – you see this at the hinged side of the box. Well, you can’t have everything I guess.
Until next time!