先看
效果图:  

1. Create Hedra object from Extended Primitives 
2. in parameters object > family select Dodec/I
cos > 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 polyg
ons 7. use tessellate all polygons twice (apply)  

8. in modifier list chose spherify=85%  

9. add meshsmooth 
and the play!