Here's one fun thing you might consider to keep their attention. Take a snoopy pole or short rod that you can cast indoors and periodically as you're talking you could cast giveaway items out to the kids. Use light line and tie objects on with a light thread so the kids can break off the item easily and "steal the bait." You could tie on some gummy wormy buggy things for the boys or some fancy feathery something for the girls. You could also tie on a container like you get in bubble gum machines and often there is a box next to the machines to recycle where you could find a bunch. They would be heavy enough to cast and wouldn't hurt anyone. You could put any light item inside, even just a maribou feather or a clown corkie would be something different for them to handle and treasure as kids do. Having things flying at them combined with the opportunity for a bit of loot will keep them on their toes and help keep things moving. And how fun for you, it'd be fishing in a barrel! Good Luck