Reese’s is set to make every trick-or-treater’s Halloween even sweeter by unveiling a vending machine that lets you trade unwanted, low-ranking candy for Reese’s Peanut Butter Cups.

First unveiled on October 28 during a Halloween parade in Tarrytown, New York, the Reese’s Candy Converter will return on Halloween night (October 31) at NYC’s Washington Square Park on 5th Avenue. The machine will be available from 4:00 p.m. to 9:00 p.m., or until its 10,000 Reese’s cups are all given out. Trick-or-treaters can simply put their Halloween “disappointment” into the machine to receive Reese’s Cups for free.

“As the #1 Halloween candy (with over half of candy buyers purchasing Reese’s), Reese’s has come up with a solution — give us your unwanted candy, and we’ll give you what you actually want — Reese’s Peanut Butter Cups,” said Hershey spokeswoman Anna Lingeris.

See the Reese’s Candy Converter vending machine in action below: