We turned City light posters into Tide boards. Attached to the boards you could find a pen in order to express yourself on the white surface. Almost everybody who passed the Tide boards took the opportunity to write or draw something on it. By pushing down the bar with the Tide logo the boards showed surprising whiteness again.

The Tide Board created a lot of attention. Passing people spontaneously experienced the ‘Tide-effect’ and left with a smile on their face.