According to a survey, 90 percent of Americans said they had traded or wish they could trade unwanted Halloween candy. Well, it you live in New York City, you’re in luck. You can take any Halloween candy you don’t like to the Reese’s Candy Exchange Vending Machine -- and trade it in for Peanut Butter Cups! Yep. From 4-9 p.m. today, you can bring your unwanted candy to the vending machine in Washington Square Park and trade it for Reese’s Cups. But you’ve got to act fast. The machine is stocked with just 10,000 cups and once they’re gone – that’s it!