Mashable's Social Media Halloween Costume Contest Winners

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After enjoying a number of fabulous submissions on Flickr, Tumblr and in story comments, we chose the five most creative and charming Halloween costumes of the bunch. Check them out below. You may get an idea for a last-minute costume or see ways to tweak one you already have. Be sure to tell us which one is your favorite -- and feel free to say what you're dressing up as this Halloween.

Congratulations to our winners and a big thank you to all who participated. Happy Halloween from the Mashable team!

Team Social Media

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The SmartEd Services Marketing Team as a YouTube baby video (yes, that's a real baby!), Foursquare's Sad Mayor, the Facebook "Like" button, the Twitter Fail Whale and social icon Snooki. Submitted by Lindsey Al of Cleveland, Ohio.

Sad Keanu

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Sad Keanu at the 2010 Screaming Mimi's press party. Submitted by James from New York, New York.

YouTube Video

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"White and Nerdy" video on YouTube with over 50 million views. Submitted by William Griggs of Nashville, Tennessee.

Twitter Bird

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Twitter bird with real-time updates via whiteboard. Submitted by Christie Griffin of New York, New York.

Mac Pro

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A Mac Pro hanging out in the Apple store in SoHo. Submitted by Jeff Shein of New York, New York.

Thanks To Our Partners at Griffin Technology

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