One of my favourite stories is that in the early days they helped finance their shows by baking and selling lamingtons to the punters.
Their show even spawned two hit singles on the Aussie music charts, a cover of the Italian classic "Tintarella Di Luna" and Sonny & Cher's "The Beat Goes On". Both of which I still have on vinyl. Treasures.
Sadly I didn't find the music clips I wanted, but I did discover two clips from a 1990 Castanet Club docu-drama movie that I didn't even know existed! There is an extremely bare bones imdb entry for it, and I've also seen it listed as being called "Big Night Out". The best news, it's due for release on DVD late this year apparently!
"Viva Las Vegas" by Glenn Butcher and the Castanet Club ensemble.
"River Deep, Mountain High" by Lena Caruso and the Castanet Club ensemble
I never saw the Castanets live, but I did once go to a comedy cabaret show by the spin-off character Shirley Purvis. Sadly no clips of her on youtube, otherwise I'd show you. Think demented Aussie housewife that spoke a million words a minute and you are part way there. During the show she left the stage and went around giving everyone in the audience little nips from a giant flagon of cheap sherry. Now that's entertainment!
But a lamington would have been nice.