The world's first conference for imaginary friends (and foes), called The Unreal RoundUp, happens in Cincinnati this October--and Steve is the keynoter. In fact, Steve is the only real person allowed to attend. The imagined participants really want to hear about how Steve's childhood was shaped by his imaginary foe: Satan. What's even better is that you can send your imaginary pal or nemesis from your childhood, or your kid can send his or her current one. There's a simple registration form on the site.