Scavenger hunts are very popular not only with young children, but adults as well. If you want to create one, all you would have to do is make a list of objects for the players to find. You can make the list as long or as short as you want, I would keep in mind to the ages of the players so that everyone has a chance at finding the objects. You can also add objects that may require a bit of work in order to obtain such as a picture of yourself with a Walmart greeter. Make it fun and enjoyable and the first to find all the object is the winner.