Re: The .02 cent squirrel call
I've never seen it done quite like that before. The way I was showed was to put the coins (nickels or quarters work better than pennies) one on top of the other, laid flat between your thumb and forefinger and rub them together. I think it's a much more realistic nut chewing sound.
It does seem to have a calming effect on them, and can bring them out of hiding faster after they are spooked.
The Second Ammendment...
Its kind of a big deal.