I'm working the fair this year! I'm a latex maker by trade, though in terms of logistics I don't think there'll be an actual sploshing section as its usually businesses that set up shop. But I'd love to hear from other wammers who will be at the fair! Would be hot to sort something
I've seen videos of individual pies at the fair but I haven't seen it in real life. Many years ago there was supposedly a pie toss booth for charity (which would be cool). There are also random popup-type events that happen around that weekend, so it is possible.