Here are two Christmas Ornaments made of pentagrams.
Both ornaments were constructed by replacing the faces of a dodecahedron with pentagrams. In one case the holes between pentagrams were filled with 60 equilateral triangles making a polyhedron - a small ditrigonal icosidodecahedron sometimes called a small triambic icosidodecahedron. In the second case the pentagrams were made into slabs so that they formed a self supporting ornament.
See the openSCAD code.
small_ditrigonal_icosidodecahedron.scad | 11.1KB | |
small_ditrigonal_icosidodecahedron.stl | 96.2KB | |
twelve_pentagrams.scad | 2.3KB | |
twelve_pentagrams.stl | 434.6KB |