This is a super easy project! Begin by cleaning your shell with mild soap and water to get any grit or residue off of it. I used one I found on the beach, so the sand had to go! LOL! Add whatever trinkets you would like. My shell contains a vintage button, a sprinkling of vintage glass glitter, and a bit of vintage lace tucked inside. Mix a small amount of the Amazing Clear Cast resin according the the manufacturers instructions and carefully pour into the shell. Allow this to sit for 24 hours to cure. Add a jump ring through the hole in the shell and extend from the chain of your choice!
I hope you give this a try! It's super easy and so cute!