Jameco might. http://www.jameco.com
Newark http://www.newark.com
Allied http://www.aliedelec.com
will both likely have it; other electronics houses probably will too.
Many GOOD autoparts stores will carry them as a matter of course; some of the fly-by night outfits (autozone, grand, kragen, etc) might have them in blisterpacks with short pigtails on them over near the trailer wiring stuff.
or you can trim one out of a car in your local junkyard; Fiats, Yugos, and VWs from the late `70's to the late 80's had modular mounts that will take a .250 female crimp disconnect; those would be my first choice if I was going the junkyard route.
It's not a case of 'Save the planet,' it's a case of
'Save the humans.'