When first made they were hand painted however in the modsern age they are spray painted onto the metal body of the toy car.
This was perfect: easy to fill hot and cold by just pouring, he switches himself, the spray was direct and not a flood of water coming out. Not quite as nice as we thought. Downsides: hose not long enough, if you put through the designed clips, it tips over constantly when you pull the hose.
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.