MATH EGG HUNT: Hide plastic eggs with numbers in them, ranging from maybe 1 to 5 then, limit the children to how many they can find, like maybe 6 or something, then . . . after they're all found, total up the numbers that are in their eggs and the one with the highest number wins a prize. Have plastic eggs with candy in them too, so that everybody will end up with something.
DUCK WALK RACE: Have the kids line up at the Start Line, squat down and grasp their ankles with each hand from behind. On GO, they waddle to a designated Finish Line. They can't let go of their ankles or the are disqualified. The first child over the Finish Line wins a prize.