Yesterday I took a class with NC Black here in Tucson. And I made this etched anticlastic formed bracelet. This is my second class with Andrea and Les... and they are superb teachers. The etching part of this class was based on their experimentation to bring galvanic etching to the home studio.... NO MORE CAUSTIC CHEMICALS! We etched using a car battery charger, water, a copper plate and cupric sulfate (root kill). Then we formed the bracelet using the tools that they manufacture back in North Carolina. You can visit their webiste to learn more... I love my bracelet and plan to make more. Yes I bought tools!