Economic Weirdtopia:

Money grows on genetically modified spiders, which you have to go around and kill for money. You can buy stuff from other people, in which case they don't have to kill spiders, but mostly you get stuff from NPCs, who just destroy the money. You can also sell stuff to them, in which case they produce money and destroy the item. If you die hunting money spiders, you are reincarnated at the nearest graveyard.

If there was a button that started an FAI that would produce that 'topia I would press it right now. ;)