Here's something that you almost certainly will be completely absolutely and totally uninterested in. But in the faint hope that I might be wrong, I'll send it to you anyway. The Project Gutenberg web page for "Animal Farm", George Orwell's parable of farmyard soviet communism. It's surprisingly readable, and abundant with true metaphor.
http://www.gutenberg.net.au/ebooks01/0100011h.html Wikipedia entry on "Animal Farm"