Hobby adjacent post:
I really want to get into the gaming side of Warhammer 40k, so I decided I needed a way to store and transport my miniatures.
I remember having a lot of fun with this when I was a kid. I got a big thick sheet of furniture foam and cut holes in it with a holesaw bit. Then, I stuck the foam to thin sheets of mdf and packed layers into a massive toolbox. I think this alternative solution is a lot more elegant but less fun...
If anyone is curious, I used a 4L A4 Really Useful Box and a sheet of 0.75mm self-adhesive rubber steel ferrous sheets from The Magnet Shop. It was about £10 for one sheet and one box. The sheets stick really well. This box will probably hold 60-80 infantry models.
The sheets I got were receptive to magnets (not magnetic). I got 2mm x 5mm round N45 magnets for the bases, but I'll definitely need stronger/bigger magnets for anything bigger than a termagant.