Artis babyboom from Dawn Amsterdam on Vimeo.

In a world of viral videos and pushy ad campaigns, it’s nice to see a clever approach like this to really get imaginations stirring. Wonderfully done.

To celebrate the baby boom in Amsterdam zoo Artis, ad agency Dawn came up with outdoor stickers inspired by the car-window-stickers. Since the stickers can be removed and reused, it is the first outdoor campaign that can physically go viral.

Via NotCot