I met a girl named Jane and asked her what she would like me to 3D print for her.  She said "a star", so here it is!  Print two halves and glue together with superglue preferably or other glues will work if you have no superglue.  Be sure to clamp for best results.  If you have no paperclips or rubber bands, then print clamps from YouMagine before glueing.  Use four clamps at least.