I love interactive campaigns that involve the target audience in their mechanism and delivery. This Kofukan Shiatsu massage campaign is a great example of simple yet creative hands-on advertising that breaks the mold and opts for unconventional techniques.
Shiatsu is a relaxing massage technique that translates into "finger pressure". The campaign creatively incorporates the massage mechanism into these outdoor posters by using two sheets of bubble wrap underneath the poster.
The viewer, who is encouraged by the poster to "press to relax", is surprised with a tiny explosion caused by his/her finger pressure on the hidden plastic bubble. The effect is an added depth of active involvement and audio effect that illustrates the benefits and efficiency of the shiatsu massage.
Another interactive bubble wrap ad is featured within the following gallery, this one to represent popping zits: