This Flickr set shows what happens to a keyboard in a fire. The keys were far enough away from the heat to survive, but close enough to get turned into goo. Some of the shots look like pebbles, they look like a Flintstones keyboard.

This keyboard is a victim of suspected arson in a lumber mill a couple years ago. The keyboard itself was not on fire, and the underside of it is still in perfect shape…basically the heat of the fire above it melted all the plastic in interesting ways.