Ah, I remember Mr Whippy - east coast version though, so no hint of any wars. According to Wikipedia, Ice Cream Wars happened in 1980s,Can anybody remember if all this was in the days before 'Mr. Whippy' came along
http://en.wikipedia.org/wiki/Glasgow_Ice_Cream_Wars
.. so yes, the Mr Whippy I remember was before that... must have been late 1960s.
He used to come round in a van though - one of the high points of the week for me! Watching the ice cream come out of that machine thing, in a wonderful starry section was a real novelty. Play-doh kits did a similar thing around the same time I think - you could squeeze out star shaped sausages! It seemed much more entertaining than plastacine, though it smelt funny and dried out very quicky if you were not so good at remembering to put the lid on!
Best wishes
Lesley