Programming for Creativity - Inspiration??

Well, today came to me as quite a surprise. Exercise 21 had stumped me completely, and I was hoping I'd find a random source of inspiration and well I did. I got a random spark and zoomed through Exercise 21, finishing it and moving onto a new day of activities. Quite the achievement for me personally even if I did have to leave out Exercise 14. I tried my hand at creating a Paint Program too but I had no idea where to start so that's another one for revisiting.