I recommend trying to implement a classic game (e.g. tetris). If you download the documentation for the graphics library, it's surprising how much you can do in

I recommend trying to implement a classic game (e.g. tetris). If you download the documentation for the graphics library, it's surprising how much you can do in two hours. Even without knowing the library from before. (Unfortunately, we just got internet on trains here in Norway, which have reduced my train-productivity noticeably)