Unsold and collected pumpkins will be launched using catapults and a trebuchet in the Silverton Hotel and Casino parking lot.
The catapults were built by East Career Technical Academy students under the guidance of Fausto Vega, who teaches construction skills at the school.
The trebuchet was built by Southern Nevada Recycling Coordinator, Rachel Lewison and retired U.S. Air Force Director, Bruce Romeo.
The catapults are expected to launch the pumpkins about 50 feet while the trebuchet is expected to cover a 100-foot distance.
The launched pumpkins will be composted into soil.
This is the second annual Pitch-a-Pumpkin event.