Business Card Polyhedra

This model by Harrison Ainsworth is one in a series of five glueless constructions of the Platonic solids built using standard business cards. Detailed instructions for building each of the five models may be found at Harrison's website here. The pictured model is an icosahedron. Instructions are also available for models of a tetrahedron, a cube, an octahedron, and a dodecahedron.