I've never seen one but you can buy ice cream from the shops there.
No vans that I know of, but most shops sell lollies and there are plenty of ice cream shops. A van might work very well but I'm not sure about the regulations!
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.