A dodecahedron is a body with twelve flat faces (I had to look it up, too ;-)).
But this one doesn’t have twelve flat faces, but twelve bulges – I find this much more interesting ;-)
If you find the crochet dodecahedron somehow too stiff, try a crocheted hyperbolic plane sometime ;-)
Links:
Crochet Dodecahedron (Celestine Crochet)
English Wikipedia entry for ‘Dodecahedron’
German Wikipedia entry for ‘Dodekaeder’
Here at unikatissima:
TED Talk: Nature, Crochet and Geometry