Turns out I don't actually know how to embed YouTube videos in a TinyLetter so here are direct links instead:

https://www.youtube.com/watch?v=moKZvhKs8IU (Sasha Siem)

https://www.youtube.com/watch?v=yEzJiPNiLJE (Kassia)

https://www.youtube.com/watch?v=GFciGtyHNBs (Dawn Richard)