Remember that scene in The Walking Dead where the gang smear themselves with zombie guts to pass unnoticed through a herd of Walkers?
Well, scientist Raychelle Burks has invented a less messy way of slipping past: Death-scented perfume.
Basically, Burk explains that it's simple to put stinky chemicals into a substance that replicates the foul stench of death. For a fuller, scientific explanation, this video is AWESOME.
'Nobody wants to be the guinea pig who spritzes on the death cologne and realizes it doesn't work' - now that would have made me pay more attention in Chem class!