We love seeing a good idea take hold, so we were happy that one of our spotters came across Netherlands-based GreenGraffiti.
Much like UK-based Street Advertising Services, which we wrote about last year, GreenGraffiti creates advertising on dirty city streets and walls using the clean, green power of plain water. Armed with just a template and a high-pressure water sprayer, the company has "cleaned" advertising messages out of the dirt on behalf of clients including Elle,...