I remember this one from primary school:

Joy to the World,
John Howards dead,
We barbecued his head.
He didn't pay his taxes,
We chopped him up with axes,
Joy to the World John Howards dead.

I went to his coffin,
I went to his grave.
Everyone threw flowers,
I threw a grenade.
The coffin went up,
the coffin came down,
the coffin went splat all over the ground
Joy to the World John Howards dead.

I looked in his coffin,
He wasn't quite dead.
So I pulled out a bazooka and blew off his head
Joy to the World John Howards dead.