This is the small stellated dodecahedron, with a hole added to of the points for hanging. The SSD is the first stellation of the dodecahedron and one of the four Kepler-Poinsot polyhedra; each spike of the SSD is formed from five isosceles triangles.Because of the miniscule surface area in contact with the bed at the beginning of the print, this model needs both a raft and external support to print successfully.