My Grasshopper Trials1: Parametric Random Stars

This is one of my exercises to get use to grasshopper, a plugin of Rhinoceros.
Since I didn't use right components to put the needles randomly, they are not very neat stars, but have quite crazy appearance.

This one below is the neat version of grasshoppered-christmas-stars that I made afterwards.
http://www.thingiverse.com/thing:584648