As I work hard towards my first full project video, here is a mini project that I did a long while ago to test some physics systems and virtual chroma keying ideas for "streamer" effects. I had used some procedural texturing techniques in Blender to get different colours and got to try Blender's VFX tools.
You can read about the project more over on my patreon from when I first did it: https://www.patreon.com/posts/44705264
The "chroma" keyable video