Etching and installing parts in shells?
So I'm trying to make a music box. I bought a 15 note hand crank mechanism
I want to install into an 8 inch nautilus shell
. I also want to etch the outside of the shell like in the photo. I've never worked with shells like this before and I obviously don't want to shatter it. What tools would I need to do this? What should I be careful of? Anyone with experience working with shells advice would be appreciated. :)