Creator : John McKeever
reverse-engenieered from this photo.
Folded from a hexagon of elephant hide.
I was searching for a while, but only recentely succeeded finding in my country a place to order this stuff greater than A4.
Very good material, holds creases, can be manipulated endlessly without tearing, etc.
A pity it is so thick (110 g/m2) ; precreasing needs to apply some physical strength, it was the first time my arms were tired at the end of folding !
So I'm not going to fold everything with elephant hide. But for such 3D piece it's the best choice, I tried last year to make it from normal paper, result was not showable.