An alternative to origami, here's a very easy paper design strp icosahedron by Heinz Strobl. Here's a very easy icosahedron to origami. For the strips, use an A4 format paper and cut it in the middle lengthwise. Do so to get 8 strips and then fold strips of 6 squares. It requires 20 strips of 6 squares for the triangles and 30 strips to knot them together (strips of 5 squares also work). Only the knotting strips will stand out, but it is still better to use two colors. You can make a bigger model when assembling 6 triangles instead of 5 and connecting them to a 5 triangle module.
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