There way have been many innocent lives saved by dousing that Koran in urine in front of terrorist scum.
For maximal effect, make sure you get one printed in Arabic. If it's in English, it's not a "real" Koran.
Bacon grease and dog s**t are probably the worst things you can put on it. Maybe you can do the doorbell/flaming dog-poo trick at your local mosque with a Koran.
-ccm