Puppies love fetch balls, so it makes sense to frame their pictures with them! Adjust the sliders change the number of balls around the border and their rotation, and click the top ball to change all the colors. What happens if you click the dog? Scratchers: notice that the frame changes as soon as you move the "Balls per Side" slider... do you have any ideas how you could react to a slider in your own project?
This is mostly an experiment in Cloning and Broadcasting. Credit goes to Stella and Max for letting me put pictures of them on the internet, they're the best dogs ever! :) The background music is Reverie by _ghost_ (Creative Commons license)