Kalila Borden reports:
"I just saw the charred remains of a Moleskine on tonight’s episode of
"Bones." If you look carefully, you can see the elastic band hanging
off to the side…"
Related: "Bones" Official Website
This reminds me of that bullet-ridden notebook 
*Any more mangled notebook reports, anyone?
This picture makes it look like a medieval relic or something.