This video will show you how to cast Bismuth into a necklace and have it turn into an awesome rainbow crystal structure.
tool and material list
Bismuth 2.2lbs
You can't make a Bismuth necklace without having some Bismuth now cant you? This is the best quality and lowest cost Bismuth I could find.
Amazon.com
Like shopping on Amazon well I made a fill list of the items used in this video here.