Sundial Parking Lot
What if the sun ordered our parked cars? The cars move at the exact rate of the sun. But isn't the earth moving around the sun all of the time...Where will we park at night?

Mirrors reflect the sunlight onto the asphalt to create three extra spaces in a parking lot.
As the sun's position changes throughout the day, the lines move.
The cars are re-parked in accordance with the positions of the lines.