It really is amazing what you can find on ebay. I was searching for items for potential props and set pieces and for the heck of it did a search for pushcarts and check out what I found. Click on the image and a new, larger image should appear so.
It's a whole article on pushcarts in NYC's Lower East Side. Most intriguingly, only the first three pages of this feature article is shown on the ebay listing and the third page ends with a classification of the pushcart community:
"The Americans sell lunches, the Greeks fruit and ice cream almost exclusively, while the Italians widen the list by adding vegetables. But the Jew-"
And there it ends! Doh!