Spike Milligan's version just had the first line:

"Germans have a sense of humour, Ja, Ja, Ja, Ja, Ja, Ja-a,Ja..."

Here's a site that contains national anthems of all countries, with the original words and English translations and sound files of the tunes. Some pretty weird ones, some pretty boring ones and a smatterng of rather good ones, especially the tunes. (Romania is one of my favourites.)