I was excited when I received the Dribbble invitation. So, I decided to create an animation to thank the Dribbble staff.
I've created my sketch and my Illustrator prototype that you can see below, so I've started with the 3D simulation of the big particles system:
Below two pictures from the Maya 3D software
After that, I have exported some vector from Illustrator and I have combined those with the particles system in After Effects