Is there any website with a complete archive of Jules Feiffer’s cartoons? I can’t seem to find any such thing by Googling, and Feiffer’s own website features only a small sampling from 1999 (I’m looking for one from the early '60s).
Nobody knows?
I think the best way to acquire as much of his work as possible would be to buy up lots of old copies of Playboy. 
Oh, they’ve been published in collections, which I’ve occasionally checked out of the library. But I’m looking for something online and linkable.
If you have a specific cartoon in mind, I might have it in one of his early paperbound collections and could scan it.
Two guys are talking in a cafe, enthusiastically agreeing with each other that “real democracy” is impossible when a country is “surrounded by enemies.” Then it turns out the one was talking about Cuba, the other about the United States. They look at each other in astonishment and simultaneously call the waiter for the check.
That doesn’t ring a bell at all. Are you sure it’s a Feiffer? Is it a single-panel cartoon or a series?
I can check (I’m not at the location where the books are right now), but I doubt that I have that one.
Definitely Feiffer. Several panels, but a stand-alone, not part of a series – the format he used to run in the Village Voice. (It probably was originally printed in the Voice.) I recall it quite clearly from the big collection, Jules Feiffer’s America: From Eisenhower to Reagan.
Sorry, BrainGlutton, I wasn’t able to find that cartoon in my collection. I thought I had several Feiffer books, but the only one I can put my hands on is Sick, Sick, Sick, which has copyright dates of 1956, 1957, and 1958. It’s not in there.
Now Walt Kelly, that’s a different story… 