"Police say a gang in the Peruvian jungle has been killing people and draining fat from the corpses to sell on the black market for use in cosmetics, although medical experts say they doubt a major market for fat exists."
Suspects carried bottles of liquid human fat and told police it was worth $60,000 a gallon ($15,000 a liter).
Read : http://news.yahoo.com/s/ap/20091120/ap_on_re_la_am_ca/lt_peru_murder_ring.
Hmm, interesting idea. There might be some merit in the idea of commercialising human fat. But there is so much around that prices probably would nosedive quite soon.