1. Create Hedra object from Extended Primitives

2. in parameters object family select Dodec/Icos

family par. P=0.38; Q=0.0

3. object convert to editable poly

4. select all edges

5. use extrude edges:extrusion height=-1.0 ; extrusion base width=0.3

6. select all polygons

7. use tessellate all polygons twice (apply)

. in modifier list chose spherify=85%

9. add meshsmooth

and the play!