For educational purposes: With 12 gatorade or similar bottles, some 3D-printed adapters, and some rubber bands, we can build a large model to show that the duality between a dodecahedron and an icosahedron. Each bottle is connected to five others. How many rubber bands do we need? [5 * 12 /2 = ? ]

For 3D-printable adapters, please refer to https://www.thingiverse.com/thing:381...