In Hawaii, we typically don't have side street vendors, but in NYC, side street vendors are everywhere, adding a unique element to the city. There are side street vendors that sell gyros, nuts, hot dogs, kabobs, and a whole bunch of other items you'll want to try. There's nothing like a great snack when you are hungry!
Reasonably priced, we tried chicken kabobs at a stand in Times Square. I've also had the BBQ Beef Kabobs in the Bronx, which comes with a slice of bread on top. It's a cheap and delicious snack, especially if you are on the go.
There's a variety of nuts, such as almonds, cashews, and peanuts covered in sweet goodness. For $5.00, you can get three mini bags of nuts.
Besides food, there are also other types of vendors. Scarfs, mittens, bags, and even art work are sold at a low cost. While walking in Times Square, it was so cold that I was afraid my hands would go numb. Fortunately, a man was selling mittens near the kabob stand. The mittens only cost $5.00.
There are a variety of street vendors throughout the streets of NYC. If you are touring the city and want to save time and money, I'd highly recommend grabbing a bite to eat from a food stand or even purchasing other items you may need from one too (such as souvenirs).