4. Provide a Memento

Services like Instaprint are popping up at many affairs, proving popular with guests as a tangible record of their active social media use. At a fashion show held by USA Network in New York, even the wall the machines were mounted on sported the hashtag, motivating curious attendees to snap a photo and post it via Instagram.
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The festival's massive, Instagram-worthy installation displayed the name of the company looming over slides in different colors, which attendees could ride into a giant ball pit.
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