Some originals and out-of-production reissues by Oneida can be found at:
Current reissues can be purchased at:
Unfortunately most of these funky space-aged works of art have either been left to deteriorate on vacated lots, or are being systematically demolished, to be replaced by the bland imagination-less buildings (or the self-important gargantuas of New Las Vegas) currently popular today. Thankfully there are local organizations springing up to attempt to save these artifacts of the spirited era that conceived them, but many of the best have been lost. So go out and find some Googieness where you live, and take a few pictures just in case it won't be there very much longer.
A good book on Googie history: