How long would it take you to shear your lawn with your razor blade? Impossible, right? With your shaver, probably, but hey, if you had a Bic, maybe not!
This creative "Grass Cutter" Billboard for Bic razors is an awesome example of guerrilla marketing. The only issue with something like this is getting people to the area -- no doubt those who are in the vicinity will notice it, but where do you place something like this to ensure it gets the right exposure?
Bic placed this ad in Japan, and I guess if they want to ensure its impact, the daily mowing would make it pretty high maintenance!