Retweeting myself from 8/25/08: @barcampmemphis "Setting up your own BarCamp Photobooth" http://is.gd/1TAb looks like a great idea, hope we can get some hardware to support

Put a self-service webcam at the door right after the "register and get your badge" table. Users walk up and pose with their ID badges so you've instantly got a bunch of good pics with names/faces to dump to flickr.