There are number of ways this will help you market and grow your events.
Each delegate to your event can have a personalised shirt that has the event name 9or sponsors names) and their name and even company logo. This can replace the name badges.
While you are running your even, you can take photos and create comics with the delegates images and thought bubbles and much more.
When the event in complete -a parting gift from the sponsors could be a mug with the sponsors message and the delegate image - something that the delegate will atke away with them and actually use again.
When you are advertising the event -do a competition and include say a prize -perhaps free entry to your event. This competition will include images and allow people to post those images to their social network. See how many people looked at their images. Each image will include an invitation to return to your site.
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