Kelly: Getting the Goblin to vomit was hard. He was such a diva. He was in his trailer all the time. No, getting him to vomit was hard because it's not a liquid. I would have loved for it to shoot across the room and hit the wall, but we didn't have professional munitions experts, which that might have required. Or explosives, or something. It was just Shane pushing it as hard as he could through a tube with his fist. And gravity helped, to get the mac & cheese to fly. And it looked really good, dousing these kids' heads. They loved it. And my god, the poor PAs who had to mop up that mac & cheese! We had tarps down, but there was mac & cheese everywhere.
Morton: We do a lot of stuff with shooting fluids out, and there's this thing called a guac gun -- short for guacamole gun. It's a big tube with an air cannon on the end of it, and you can deliver all kinds of different liquids with that. But there wasn't a lot of viscosity to this macaroni & cheese mix, and I was trying to fist 2 gallons of it at once through this big tube. There was nothing we had in the lab that would push that kind of liquid, so we had to old-school it and punch it through manually. We made 20 gallons of it, and we used every bit of it.
Kelly: A smart thing to do, if we had the time or money, would be to manufacture a lighter-weight material which looked like mac & cheese. But no, we just made pots and pots of mac & cheese. My dedication to verisimilitude required that we add more Cheddar beyond the regular Kraft mac & cheese. It wouldn't have looked as Cheddar-y otherwise. It was necessary to add that 60% more Cheddar, so we used extra cheese sauce packets and some food coloring to get it to pop.
Morton: It was a mixture of mac & cheese, pineapple Faygo, and lemon Jell-O pudding. And a little bit of fluorescent yellow food coloring and red coloring. It actually smelled like vomit. It was kind of gross.
Cosmatos: It has a very distinct, almost pungent flavor to it, but it grows on you, you know? It's super good.