This is birthday idea for an older group of kids!  You write down some items like 1984 penny(or whatever year they were born on) and a feather a green cottonball some puppy food a leaf from a willow tree and so on. And then you split them into like 4 groups sending a parent with each group. Then you go house to house asking if they have each of these item you give the kids a certain amount of time to do this in and the hardest thing is you can only get one item from each house ex: you can't get the feather and the puppy food from the same house!  This is a guaranteed hit!! Any age group will love this!