The Nickel (5 cent piece) is
now worth 7.5 cents. This being the case, if you exchanged paper money for rolls of nickels, you would have an immediate 25% return on your investments (assuming commodity prices stay the same). I see an arbitrage opportunity here, but I don't know how to melt down nickels or find people to purchase them. If anyone out there deals in copper and nickel, let me know.