Maybe something like this? Everyone can write their names on them. People know usernames better than real ones sometimes [img]<<GRAEMLIN_URL>>/grin.gif[/img]
This is about the extent of my computer saaviety (saaviety?) since as you can see, that's a picture taken with my phone so I could turn it into a picture to post. I know, sad. Funny, but sad. But that's an idea at least! I think there is a business card template on Word that maybe that logo can be printed out multiple times on a self adhesive backed paper. Put them in a booth somewhere, and everyone could take one each day at the show if they wanted to. Just a thought.
See you guys there!