Gratevertising - Party Store Uses Subway Grates for Promotion (GALLERY)
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You may think subway grates look nasty, but ‘Surprise Party Specialists’ in NYC found a way to make the grates a good time. Whenever the subway cruises by, streamers surprise you from the grate. The ad, developed by GJP Advertising, is innovative and well connected to the value proposition.
Via: core77
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