I found a project online called "Doodles." It looked interesting due to the amount of different ideas being displayed on the website. Some doodles you can move with your mouse when you click on them. Others you can just watch and see the different movements they perform. It's cool to see what each doodle does and how you can interact with some of them. You should check it out. The website is: https://pierfrancescosoffritti.github.io/doodles/
It is created by one person which is pretty impressive. His name is Pierfrancesco Soffritti.
It definitely took a long time to create I would assume. He has 22 different doodles on the website, so I'm assuming it took a good couple of months to create all of them.