First there was Karl Rove, George W. Bush’s brain.

Next, Eric Fehrnstrom (via GQ): “If Karl Rove was Bush’s brain, then Fehrnstrom is [Mitt] Romney’s balls.”

Now comes FOB Valerie Jarrett (via the New York Times):

If Karl Rove was known as George W. Bush’s political brain, Ms. Jarrett is Mr. Obama’s spine.

So what’s left? Paul Ryan’s nose? Joe Biden’s hair plugs?

The possibilities, unfortunately (think John Boehner’s tear ducts), are endless.