So I was looking at making the origami style 3d. I made a couple and they are so HOT. 3 layers of fabric plus the filter. I found this video online that only uses 2 layers plus the filter.
https://youtu.be/qmkjn5O3XVo
I also might try to figure out how to make this one so that it allows for a filter. Maybe splitting the liner somehow. I like how the front is more football shaped than rectangular.
https://www.instagram.com/tv/CC57pligmGw/