The last message wouldn't let me write any more, but I have to say this - "The Girls in Spain" WASN'T a clapping game between two people, it was in a ring of about 5 people.
We also had simple clapping games like "Pat-a-cake", "A Sailor went to sea-sea-sea" (with many variations) and "A-B-C-Together". I'm assuming (perhaps incorrectly) that these aren't mentioned cos they're obvious and everyone has them - I'll type them up if this is wrong...