Years back I got hold of a load of polystyrene brood boxes and supers from Abelo for much cheapness because they were made with both top- and bottom-bee space, as you can see from the photos.
I’ve been wondering what I should do with them. For the time being I’ve been using them as bait hives, but there must surely be other things I can do with them. Perhaps used as supers for getting brood comb drawn out? I don’t imagine the bees will be too stressed about an extra bee space in that situation. Needs more thought.