I made this using die cuts, but it would be cute made with stickers!
Hero Arts Stencil Mermaid Sea Waves
Elizabeth Craft Designs Summer Journal Special 1788 sea life dies
Crafter’s Companion Calendar Spring 2020 happy birthday die
Currently available alternatives
Paper House Productions 3 Dimensional Layered Cardstock Stickers Shells
https://www.scrapbook.com/store/ph-stdm-3034e.html
Reminisce Vitamin Sea 12 x 12 collection stickers
https://www.scrapbook.com/store/re-vse-100.html
The Crafter’s Workshop Calm Waves stencil
https://www.scrapbook.com/store/cf-tcw1060s.html
Trinity Stamps Mermaid Cove dies
https://www.scrapbook.com/store/ts-tmd-234.html
Short process video: https://youtu.be/-RVjOTUrLas
Papercraft Crystal 