Cool!
But guess what? We've already done it!
This ring, fondly named "An Ocean of Love" was created for a Marine Biologist from San Diego. She was studying the effects of plastic on marine life. She and her husband were so passionate about the research they were doing that she decided to incorporate plastic samples, collected from the Pacific Ocean, into her crushed inlay. The result was this beautiful ring that is a constant reminder of the passion that drives her.
Carpe Diem, Simply Wood Rings
Info graphic: http://methodhome.com/ocean-plastic/