Instead of disappearing in a spectacular puff of smoke, the dancers on the Vista billboard got down and waved at the cabbies. Talk about anticlimactic.
A nice take on the transparent billboard variety: "Constructed from semi-transparent resin, the billboards accurately blur the scene behind them regardless of day, weather, or season." -- Ian Hart
If you like the stuff you see on Billboardom and Adverlab, you will love this book. Advertising is Dead - Long Live Advertising is a richly illustrated, annotated and cleverly categorized compendium of untraditional advertising approaches.
A very smart way to take advantage of a typical behavior: place a realistic-looking cut-out of a police car to slow the drivers down and read your billboard. This billboard for a Turkish bank reads, "Pay your traffic tickets on time without waiting in line - isbank.com.tr". -- Frederik Samuel