I'm going to be giving a public presentation this year on Halloween and some of the monsters that are associated with it. While it's mostly going to be me talking, I'd like to make it as interactive as possible. I'm somewhat limited by time and liability concerns, though. There will probably be people of all ages there, so I need some family-friendly and age-appropriate activities that are easy to set up and don't take long to implement. I've thought of the "headstone game" and a group reading of a spooky short story. I might be able to get some people to walk around in costume, but I'm not sure. We have a small budget, but most of it will be used for advertising and setting. There may be a bit left over, but probably not a lot. If you were taking a child, say 8-12 years old, to a public talk about Halloween, what would you like to see or do that would be fun for both adults and kids?