There was 'The Land that Sam Built' parodying 'The House that Jack Built':

Final verse:

This is the land, built on a dream,
That worshipped the buck that reigns supreme,
That built the Mob, that still goes free,
That paid the pusher, who copped a plea,
Who hooked the junkie on the fly,
Who robbed the store with prices high,
That milked the poor in all their need,
Who hated the man so full of greed,
Who owned the slum
That housed the filth
That bred the rat
That bit the child
Who lived in the land that Sam built.


And, to the tune of 'Good King Wenceslas' of course:

Good King Wenceslas looked down
On the Earth this season.
Saw five million lacking food.
Asked what was the reason.
'Do not worry', he was told.
'If there's some starvation,
It's our way of keeping down
Overpopulation!'

Good King Wenceslas looked down
On a field of battle.
Saw a hundred people there
Being killed like cattle.
'Do not worry', he was told
From the field of rubble.
'We have found that Army life
Keeps boys out of trouble!'

Then a bit that I don't remember; and then it concludes with Wenceslas reporting to Jesus:

'Earth is such an awful place,
Only fit for slumming.
If You're smart, You'll drop all plans
For the Second Coming!'