YA WW2 little boy (on a cart?) [s]

[🤌✨]

In the book the kids collected the metal from bombs (or the like) and made balls to play with. The main character of the book was a boy and I think he was jewish. On the cover I think it was a picture of him riding in a cart. That's all I can think of at the moment. Any help would be greatly appreciated! Thank you!

[Kristina]

I was looking and found When the Soldiers Were Gone by Vera W. Propp about a WWII Jewish boy who is riding a cart on the cover.

[🤌✨]

Oh my goodness!! Thank you sooo much!!!