A simple stackable box that you can put pretty much anything into. I printed this one in Glitter PLA but any material will work.

I printed a simple tool to center the handle, place it over the lid, twist slightly to pull it tight and then place the handle in the center hole while gluing into place. I used 5 minute epoxy but be careful not to use too much, you can see in the photo I did use more than I needed to and the epoxy did squish out a little, nonetheless it still works just fine. The bottom brackets probably don't need to be glued onto the bottom of the boxes, they should fit nice and snug but use a drop or two if you like.