1st stellation of a dodecahedron
This is a slot-together model of the first stellation of a dodecahedron. The slot sizes are appropriate for "172" illustration board, but you can scale the pieces to construct this model out of other materials.
You'll need to cut 60 large triangles and 90 small tabs, as detailed by the text in the file. Assembly is straightforward; refer to the pictures for details.