Card trays

I tried to reach a good balance between sturdiness and amount of plastic used. The walls are all 1.5mm thick, which worked well for me.

These are all really just the 1x1 version overlapping on the edges. I uploaded them all because it seemed like it would be easier for people to use than to try to overlap the 1x1 version for themselves. These hold cards up to 66x91 mm. I can upload additional configurations on request.

Update: I made a newer version which lets you access the bottom of