One of the most expensive substances in the world – and someone just synthesized an alternative: http://www.chicagoreader.com/Bleader/archives/2012/04/09/break

One of the most expensive substances in the world – and someone just synthesized an alternative: http://www.chicagoreader.com/Bleader/archives/2012/04/09/breaking-ambergris-news http://www.chicagoreader.com/Bleader/archives/2012/04/09/bre... Whale guano. Seriously.