Give your figures a place to store their tools, and one that can move along with them to wherever the action is.
You'll need three short drawers and one tall one. I've included two versions of each- one with a handle (easier to open) and one without (more accurate to real-world toolchests).
You'll need to print four of the casters and glue them into the holes on the bottom. This can be a bit fiddly.
I've also included a plated version that should fit on most printers (tested on a Monoprice Maker Select Mini). That comes with an extra caster, since they're tiny and it's easy to lose one.