Interesting fact for Monday, December 6th, 2010: U.S. quarters manufactured before 1964 are made of silver. Huh.
Even more interesting, that quarter can be transformed into a silver ring, using a spoon!
Granted, getting that hand-tapped look took Instructable-r Target022 a year to complete, but his instructions are definitely worth checking out. The final product looks well worth the labor.
Make a Silver Ring for 25 Cents [Instructables]