Spiked Icosahedra from Three Sonobe Variants
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Comparison of three related Sonobe variants of mine, from left to right: Paper Airplane Sonobe, Checkered Sonobe, and Bow-Tie Sonobe. Each icosahedron is folded from 30 units. The red one, from Paper Airplane Sonobe, is slightly smaller than the other two since I used slightly smaller sheets.
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