I used exactly the class actions to create this Koala set. After playing the first action I just changed the pattern scale on every artboard so it looks best.

On the occasion of this project I would also like to share how it's useful to work with Artboards, even without actions. On the below screenshot you can see a set of graphics prepared to illustrate this class chapters. I could see them all at once :)

Can't wait to see results of your works!