The Emergency Bra
See, you take off the bra in event of emergency and then separate the cups from each other. After that, place your mouth and nose into the cup’s interior and extend the bra strap over your head. Lastly, breathe normally. The peace of mind of wearing a bra that’s ready for gas bombs will cost you $30. (video)
Dr. Elena Bodnar won the 2009 Ig Nobel Public Health Prize for the invention, which Paul Krugman demonstrates in this video of her acceptance speech.