A friend of mine competes in bodypaint competitions. I had already helped her adding some led bling to her headpieces. Remembering Soomi Parks project (http://soomipark.com/main/?portfolio=led-eyelash), mid 2016 I decided to make my own version of her led eyelashes.
Instead of attaching underneath the eyes, I wanted mine to be on the actual eyelids. The easiest way we found out was to attach them to some fake eyelashes.
The first generation was single color.
The second generation was bi-color, and had a microcontroller, running different animations.
Both versions ran on CR2032 coin cell batteries.
Here they are in action: