The Penny Farthing Bike Gang likes old-timey bikes and dislikes being messed with. So when you see them coming down the street, get out of their way (I think the brakes on these old time bikes are suspect). When not being hell-on-giant-wheels, they maintain a great photostream on flickr. It currently lacks info on how to get into the gang, but I am looking into it.
The Penny Farthing Bike Gang via Flickr