I might also mention that there are web sites that sell Cthulhu plushies. If I remember correctly the slogan was something like this: "You know you want it. And believe us... it wants you too."
Here's a nice song about this... entity, to the tune of Camp Town Ladies. I heard this in BatMud ages ago, and can't remember the original author:
Who's the Elder God we fear?
Cthulhu, Cthulhu
Who will sleep from year to year?
Cthulhu is his name!
We're going to pray all night
we're going to pray all day,
'til he rises from the ocean floor
then we'll run away!