depending where you have your reunion and when We have in the past hired playground leaders or students majoring in physical education. Another idea is to entice older family members ie teenagers to do games with the younger ones for a nominal fee. Badmiton/sack race/ egg toss/nature hunts.When you rent a pavilion or picnic tables ask how close to a playground they are if using a state park. Hope you have fun. One thing Do not put too much emphasis on organizing every minute. You will not be able to enjoy yourself or your relatives. You will find that the kids will enertain themselves much of the time. Kathy