Create a Sundial

Create a sundial in the backyard, or wherever there is a flat area, out of the way of foot traffic. Use smaller rocks to mark the hour. It may take a couple of days to get the "timing" correct. Mark the hours with chalk. Now, watch as the kids run outside to "check the time".

(Extra: Try to theorize what the sundial will show when the time changes back from Daylight Savings Time.)