Great Stellated Dodecahedron

The great stellated dodecahedron is a Kepler-Poinsot polyhedron, it is one of four nonconvex regular polyhedra. It is composed of 12 intersecting pentagrammic faces, with three pentagrams meeting at each vertex. It shares its vertex arrangement with the regular dodecahedron, as well as being a stellation of a (smaller) dodecahedron. It is the only dodecahedral stellation with this property, apart from the dodecahedron itself. The original length of the dodecahedron pentagon side length for this model is 0.3 inches. http://en.wikipedia.org/wiki/Great_stellated_dodecahedron