Here are a few demos from later lectures
Metaballs
Simple demo showing how metaballs can be implemented without any optimizations, doing to much work in the CPU and checking all-to-all. And it still runs.
Scrolling textures
Maybe the most meaningless screen shot? Sorry for saying that things are simple, but an effect done in two not very complicated lines of shader code is not really what I would call advanced. But it looks nice!