A Dymaxion map is usually seen laid flat. I designed this version, which can be folded into a 3D 20-sided shape, using a system of only tabs and slots.
I figured out the folding system based on many iterations of prototypes, cutting out and putting together different physical versions. I tested the ease of assembly with various co-workers to be sure others could also follow the steps.
I also created a digital animation for those who wouldn't receive the physical card.