To make a large EIEnor model, you need a base rhombicosidodecahedron. As for the reason to do it, see the March 2 weB log entry.
I started with the large Rhombicosidodecahedron from this document: http://www.korthalsaltes.com/pdf/rombicosidodecahedron.pdf *. Print the net for each page. Color as desired. Cut out the base model pages. Fold and glue or tape edges together.
I'm working with five colors to show how five brain cells synergize structurally. The colors are orange, yellow, cyan, blue, and violet. See five cubes expanding separately. You can use these colors in your model.
See EIEnor.