DHL's guerilla marketing

This is my favorite type of marketing. It's called guerilla marketing, and what that basically means is: the methods used are very unconventional, and they are designed to get the most bang for the advertiser's buck. Usually they are very cheap and often times very attention-grabbing. This one surely would grab your attention, and is so brilliant and genius and just plain perfect in its presentation, and that's why I like it so much.