Yes, the lime one has only been available in domestic sized bottles for a year or so. before that I had to search high and low for catering-sized bottles. I love the pinapple one too but can't get hold of it.
I make my own chocolate malt shakes with cold milk, chocolate ice cream and Ovaltine mix.
Bril.
Black cherry milkshake sounds rather nice. I only ever drink chocolate milkshakes.
Do you remember when the milkshakes at KFC were really, really thick? You'd almost pull a muscle trying to suck it up through the straw!