There's an easier way to profit from the demise of the Yankee greenback. Several ETFs track foreign currencies. There's FXE (euro), FXY (yen) & FXF (Swiss franc). Those are just the ones I know off the top of my head; there are others as well. All can be bought/sold just like stocks, and many have options.

"Even in the worst of times, someone turns a profit." -- Ferengi Rule of Acquisition #162