Gazpacho:
I knew, but thanks anyway. Here, they are not (not specially).
I know a couple of those but I am afraid they cannot be published here, haha, they are what we'd call "chistes verdes" (sex jokes). But spanish many times don't get the joke unless you change the subject from " a blonde girl" to "a Lepera".
Pinguino: There haven't been many changes on that that I know of, besides of jokes on the peculiar idiosyncrasy of some regions. The people that, for many years now, have been the target of jokes about fools, are the inhabitants of Lepe, in Andalusia.
Hence the famous "chistes de Leperos".
Like:
-News report:
A two seats light aircraft has crashed into the Lepe graveyard. Seven hundred corpses have been retrieved yet, but more victims are not discarted.