WW2 was instrumental in changing the American culture in so many ways, but did you ever hear of car bumpers being donated to the scrap drives?

Rita Hayworth did her part... so if you come across her big old car with no bumpers, now you'll know what happened to them.
http://www.sptimes.com/2005/08/28/Worldwarii/War_changes_fashion.shtml

For an example of immense largese in donating to the scrap drives, read about Panmsy Yount's 1933 Duesenberg Model J Judkins Berline that was turned over to the war effort for it's use as metal for armor plate, or whatever they did with all that steel http://justacarguy.blogspot.com/2008/08/ive-posted-before-about-ww2-scrap.html