Tell us what it looks like (a picture maybe), what you use it for, and Ideally where the rest of us can go to get one too
I'll start with something low tech, but very geeky IMO
I have a copper mixing bowl that I use for making Pavlova

Part of the egg white grabs the ions from the copper and this gives firmer egg whites quicker, and the copper ions make the egg whites turn a copper/pink color.