Spheres
Built by Chris Fry in April 2006
The dished triangular plate included in many of the recent “Design” sets can be joined to its peers (20 in total) to form a sphere of about 85mm (3”) leaving 10 pentagonal holes.
Alternatively an identical structure can be assembled from the “Design” flexible strips using two 9-hole and one 5-hole strip for each of the six 20-hole “rings”.