This Has to be in the Humour Thread, page-3

Not to contradict too strenuously PD, there is however this entry on the NET:

where did the pop group Boney M get their name? | Yahoo Answers


https://au.answers.yahoo.com/question/index?qid=20060921051651AA5pmEl

14 answers
In fact the name is an homage to the classic rock and roll song, Boney Maroni which was a hit for several classic acts including Showaddywaddy who were very ...

Aussie contribution too is mentioned; the dispute could be settled by establishing
the time-line of name suggestions.
It appears to me that Boney Maroni may have been the Originator.
Not taking any bets on it.

Cheers,