I love not only this clever billboard from a swedish shampoo company, but how it inspired The Swedish Childhood Cancer Foundation to make a similar ad with a very different message. The technology is of course impressive, the visual of the original ad works so well in that environment, and then there’s a message at the end with a strong call to action that really works. Kudos to all involved. A GWH W.T.F. (Winner, Toss-Up, or Flop) WIN!