Playing with AS3 Drawing

I've been going through Colin Moocks' AS3 book and trying out some of the examples (along with getting distracted by trying related things). In this piece I tried to create a dynamic randomized drawing window. The colors are pulled randmly from an array, and the app randomly draws 3-9 lines to form an object and also randomly selects the alpha prop. After 6 objects are drawn it deletes the lowest one in the display list. People have been doing this kind of thing for a long time but this was fun to do with AS3: