Silver Bullets rule. They're like... the only way to slay a Werewolf, not to mention the most stylish way ever, to slay anything!
There are also stories of a Bulletproof Witch, who needed to have silver rounds pumped through her in order to die. "Bulletproof Witch" - nice.
Also, the term "Silver Bullet" has been adopted as a common turn of phrase, referring to the solution of a problem with extreme effectiveness... You refer to a "Silver Bullet" being a very easy, albeit hypothetical solution - usually technological - to the problem.
So, in a problem solving situation, skipping the "hard work" to solve it, you'd look for a Silver Bullet solution, which would require a lot less work.
(I guess Werewolves were a complex problem, with an easy solution... Silver Bullets!)
