While searching for spiral and tunnel graphics generators I came across this website that allows you to create and customize many hypnotic visuals.
https://hypno.nimja.com/visual
These are some that I created ...
Clown's tunnel:
https://hypno.nimja.com/visual/86?co...speed1.3&t=s69
Candy water slide:
https://hypno.nimja.com/visual/86?co...bffffff-f1-s69
Mystical lollipop :
https://hypno.nimja.com/visual/86?co...bffffff-f1-s69
Io's subway:
https://hypno.nimja.com/visual/86?co...bffffff-f1-s69
Pipe's invasion:
https://hypno.nimja.com/visual/89?co...bffffff-f1-s69
Magical wheel:
https://hypno.nimja.com/visual/64?co...bffffff-f1-s69
Into parallel mirrors:
https://hypno.nimja.com/visual/64?co...bffffff-f1-s69
Create and share yours too, or choose your favorite. And does anyone know a program that you can download to generate these effects?