On the home front during World War II, posters urged women to conserve precious resources for the war effort, whether that was by breeding rabbits for their meat or collecting cooking fats for conversion to glycerin, an ingredient in explosives. An article in The Nevada Daily Mail from October 30, 1942, explained "Every drop of waste kitchen fat is needed to make the high explosives necessary to blast Hitler & Co. off the map. And glycerine makes explosives for the U.S. and our allies. So, save all your waste fats after you've got the good from them."
Gallery label from Designing Modern Women 1890-1990, October 5, 2013–October 19, 2014.