Regular star polygons and star figures

Regular star polygons and star figures of arbitrary sizes, number of sides, skipped vertices per side and subfigures (for compound star figures). They came as OpenSCAD modules in three flavours: conventional, solid and contoured.

These stars make a nice ornament and can be used as building blocks for other figures.

This thing is similar to http://www.thingiverse.com/thing:5052 .