Check out Copper Coffee: https://www.coppercoffee.com/collections/all?utm_source=burlsart&utm_medium=youtube&utm_campaign=coffeeguitar
I take a bunch of coffee beans and turn them into a guitar
The epoxy I used: (Use coupon code: burlsart15):
http://www.totalboat.com/product/totalboat-thickset-casting-epoxy/