Weather forecaster company, MetService has made waves with its tongue-in-cheek OOH billboard that delivers “real-time weather”. The transparent billboard essentially lets passerbys view the sky, framed to look like a Metservice webpage. The clever execution has generated 30,000 Facebook likes, been named buzzfeed’s ad of the month and garnered the front page of reddit. For smaller clients like MetService, stunt-like campaigns like this are a great way of getting the most return on spend.