Rebecca, That's why I use the "Brass" wire instead of the copper, because it is "dialectic". No Galvanic inter-action. Which with a non-ferris like gold or silver, I wouldn't expect anyway.
I DO love the idea of a Mylar belly band....
I can think of a few things to use them on..... Tomorrow, I make BELLY BANDS!! I LOVE MONDAY!!
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baer