You can weave an icosahedron from 10 strips of paper — or anyway you can weave a construction that has icosahedral geometry; it is actually more of a snub icosahedron. From about 11″ strips of…
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A higher order sonobe ball
Below is a modular origami construction known as the 120-unit sonobe ball. It has the geometry of an icosidodecahedron but with the 12 pentagonal faces of the icosidodecahedron split into five of the little equilateral…