I liked how the original case clipped together but found that swirl logo a bit flimsy when printed so I modified the original stl using openscad to fill in the logo and add some slats instead.

There's also a slot for the leds so you can see what's going on this may need adjusting slightly for position but works well enough for now.

You'll need a copy of the original stl for the lid and put that in the same folder as the stl.