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Let's say you just launched a new product line, or opened a small boutique. You desperately need to advertise your company, but you don't have the cash to buy ads in magazines or plaster billboards across town. What to do? The website Public Ad Campaign created an instructional video that explains how to open up break open a New York City phone booth, remove the silly poster for Verizon or Burger King or whatever, and replace it with a poster of your own. Yes, of course, it's totally illegal—and you'll need a bunch of tools to do it—but as evidenced by the video below, it's not like passerby will pay you any mind while to carry out your guerrilla ad campaign.

Phone Booth Removal Instructional Video [via Urban Prankster]