Oh no, not the eye 😱
There's a wonderful woman on Youtube who has a video tutorial showing how to make one of these as a piece of jewelry, She uses nail varnish for the pupil/iris, and scrapes away at the edges to reveal the colours under each layer of nail varnish, andto get the fire-like edges looking awesome. She also does Dragon Eyes brooches the same way. I made a Sauron's Eye for myself, and added it to a scratch-built tower for a wargame club. They were VERY happy with the finished result, and since then I've made Dragon/Demon Eyes and placed them in 25mm magician's mirrors from Scotia Grendel Products, and they just look so good, words can't describe them. Look up the Youtuber, like her videos, subscribe to her channel, and give them a go yourself, as they are easy to make, and so beautiful to wear/look at afterwards :-)
What a great job! You could put a photo of the ones you have made for us to see. I have always admired the art that many people have with their hands.