Carnival game - ping pong toss. You could have this as a pre-registration game or after meals.
Hey, I found this really awesome Etsy listing at https://www.etsy.com/listing/223905345/harvest-festival-fall-fest-church-or
Carnival Game Frisbee Toss Game-Could make it look better though...
Lucky Key - I've seen several themes on this and wonder if it would be a good idea for us.
Fall Fest Cable Wisconsin
Tattoo Booth...something the kids be in charge of at the relay!! More
Target golf game. Easy to make, lots of fun. You could have different slots for 1 or 2 pieces of candy and have the skinny slot be for the prizes. They keep trying until they get it in one of the slots.
18 ways to use hay bales for shabby chic garden party or wedding
2. Fall Fest & Food Truck Fare
Leaf Bowl DIY Craft: Perfect for Fall - Crafts Unleashed