Cool Coin pendant

Nice idea that you can use some scrape copper pipe to make.  Pretty straight forward to make too.

https://www.instructables.com/id/Buffalo-Nickel-Coin-Pendant-Coin-Jewelry-Great-Gif/

Another nice build (but a bit more work) can be seen here

https://www.instructables.com/id/Make-a-Coin-Locket/