Hand engraving but @Yuusuf_Sallahuddin_Y watch what happens at the end. This is what I was thinking with phosphorescent paint.
https://www.youtube.com/attribution_link?a=ojgVb3CqjaA&u=/watch?v%3D1oku3sKgE-E%26feature%3Dshare
That’s cool & looks great. I used a glow-in-the-dark green coloured paint a while back on a tobacco pouch design that I did. Turned out pretty cool too.