Glue paper cups together to make a shape that is roughly the shape of a truncated icosahedron.
Materials
140 small paper cups.
Hot glue gun.
Steps
Glue seven cups together to form a hexagon. Make twenty of these hexagons.
Glue five hexagons together to form a ring around a pentagonal hole. Note that the cups on the edges of the hexagons butt up against each other instead of nestling between.
Continue to glue hexagons to the model always forming pentagonal holes.