Plastic display cases for ink samples in glass bottles

These clear plastic cases I've been ordering on AliExpress lately are great for presenting 22mm base diameter glass bottles for “ink samples” for display, as well as provide adequate protection for shipping.

Of course, one literally can't have it both ways; they don't quite work as lidded storage trays for standing the glass bottles upright, with or without being stacked.

If I was making (more) sets of ink samples to sell, that would probably be my preferred format. Alas, the economics of selling ink samples that one has to send by parcel post don't really work.