Quarters are nice and silvery. What if they looked like a big penny? This video shows you how to electroplate metal objects.
How to Electroplate a Quarter
Attach a piece of copper (a penny should work) to the positive + end of a battery
Attach the quarter to the negative end -
Fill a beaker/glass with a copper salt...copper chloride, copper nitrate (any salt should work, even vinegar)
Fill the beaker with water and place in your metals