These are the best corporate Halloween ads of the last 10 years, or so.
American Snickers ad won a Gold Lion at Cannes in 2007.
Image may be NSFW.
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From 2001, M&Ms, via Germany. More here.
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Via behance.net
2012, McDonald's, via Canada.
Image may be NSFW.
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From 2004, Guinness, via Singapore.
Image may be NSFW.
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Via coloribus.com