Did I imagine these square drinks tins from the 1980s / early 1990s?

I have a very strong memory of popping to the off-licence at an age when I was too young to buy alcohol but old enough to go by myself and get soft drinks. I remember picking up one or two square (well, rectangular) metal tins that would have contained a litre* of pineapple juice or something similar - these were for mixers at parties my parents were having.

There was no lid and I think the only way my dad opened them was to punch two holes, one for pouring, one as an air vent. The tins were quite pretty and colourful and might have had repeating patterns. Can't remember any branding on them. They weren't thin tins, like cola cans, but quite solid and rough to the touch (not rough, but not smooth I mean). 

I was in London, UK but these may well have been imported. 

I've not managed to find any mention of them on Google, I suppose I need to read some magazines of the 1980s to see if they're advertised in one...

*Given the time it might been a couple of pints.