None of these aluminum Mardis Gras throws are worth much, $1.00/$2.00 USD. or less Since they are massed produced for the krewes to throw off of the floats along the parade route. There are 1 ounce and 1/2 ounce .999 silver ones made to hand out to big shot guests that are invited to ride the floats. They would be spot price plus a small premium, I have only seen photos of them.
I have bought a number of collections of them as low as .20¢ each. And since in this area in Michigan I seem to be the only current buyer of them. You can google them for more information.