I found the best idea for a party in one of my Family Fun magazines. You could do a Camping theme. Have the party late in the afternoon. Have nets to catch fireflies/butterflies (97 cents at Decorator's Warehouse). There is a cake that was in the magazine that looks like a real campfire. You could make S'mores , roast Hot dogs, Sing campfire songs . The nets and a flashlight with each child's name on it could be the favors.You can find the directions for the cake on the Family Fun website. And don't forget , there's nothing like sleeping in a tent for a little boy!