The guys from Discovery's "Moonshiners" have a challenge for the chunkers: destroying a still.

Yankee Siege sets a world record for largest pumpkin ever chunked by a trebuchet.

Air cannons take aim at the four-inch steel walls of a trailer in this challenge by the guys from "Gold Rush."

Watch a piano hit a high note as 58,000-pound trebuchet Yankee Siege sends the instrument flying.

The guys from Discovery's "Fast N' Loud" challenge the chunkers to sling a car.

Smokin' claims it can shoot up to 20 pumpkins in a single scattershot. How will this air cannon do on an accuracy challenge?

Team Ethos is amping up to 9000 pounds of tension.

See American Chucker in action!

Kari gets up close and personal with Bad to the Bone.

Meet the long-suffering wives of Punkin Chunkin competitors.

Meet Punkin Chunkin's youngest competitors.

Launch-Ness Monster is the talk of the trebuchets.

Shooda Noed Beter is a machine unlike any Punkin Chunkin has ever seen.

Excitement as Brian Labrie wins Punkin Chunkin after three years of defeat.

You'll never guess when Punkin Chunkin competitors do when they're not at the Chunk.

Roman Revenge catapult team captain Kim Moore was knocked off a ladder when their machine malfunctioned in the first round.

Yankee Siege sets a world record for largest pumpkin ever chunked by a trebuchet.

Witness the importance of testing and design detail in the build process of a high tech trebuchet.

He came, he conquered, and now he's back for more! Does Yankee Seige's "King of Trebuchets" have what it takes to chunk it ... good? Check out this sneak peek from "Road to Chunk 2011."

Team NASAW tells Mythbusters' Grant Imhara what makes their new trebuchet design truly unique.

The guys from Discovery's "Moonshiners" have a challenge for the chunkers: destroying a still.

If you're a playa, a hustler, or just want to see a gourd soar at 400 miles per hour, then THIS is the competition for you! Tune in to PUNKIN CHUNKIN, Thanksgiving night at 8PM E/P.

The guys from Discovery's "Fast N' Loud" challenge the chunkers to sling a car.

Boys love to CHUNK, but what about the ladies? Can an air cannon champion defend her title against the "big boys" of Punkin Chunkin? Check out this sneak peek from "Road to Chunk 2011."

Smokin' claims it can shoot up to 20 pumpkins in a single scattershot. How will this air cannon do on an accuracy challenge?

Watch a piano hit a high note as 58,000-pound trebuchet Yankee Siege sends the instrument flying.

There's a new team in town. American Chunker comes ready to rock the Air Cannon category. This team did their homework and spared no expense on their impressive machine.

Check out the first launch in this year's Punkin Chunkin competition by the centrifugal machine, United Flingdom.

An old favorite, Yankee Seige, has retired from competition. But one member of their team vows to keep on chunkin, with a new and improved twist on the trebuchet. Can Tired Iron live up to the legacy of Yankee Siege?

Punkin Chunkin icon Fat Jimmy wants a chunker of his own. If he can pull off his complex build, it will be high times for all.

Long barrels might seem more impressive, but the truth is bigger is not always better, no matter how cool it looks.

Air cannons take aim at the four-inch steel walls of a trailer in this challenge by the guys from "Gold Rush."