My friend Mike sent me the link to Mr. Doob’s Harmony application, which he described as “kind of like etch-a-sketch for adults”. It took me a little while to figure out how to use it, but once I got started it was really kind of mesmerizing…I would call it a hybrid between an etch-a-sketch and a Spirograph. It has a bunch of different ‘pens’ that create some nice effects – webbed, fur, shaded (my favorite). My only complaint is that there’s no ‘undo’ button that would allow you some flexibility in playing with the different functions. Play around with it and enjoy!