The Grand Procession
The famous pumpkin canons. This turned out to be a bit boring (to me) to watch after the first couple rounds. I'm sure it would be entirely different to shoot.
For my money the best of the "pumpkin chunkers". This one is smaller than it looks and allowed the kids to get into the act. It may have shot the pumpkins mere feet as opposed to the HUGE distances of the cannons, but I bet the kids were more satisfied.
All and all, the rally was a good time and I bet it keeps growing over the years. Great idea Marshal.