Like many steampunks, I fell into the subculture because of the outfits (and stayed for the books). My own wedding had some minor steampunk characteristics – our wedding clothes were tailored by a friend of ours, and my dress had corset-style lacing added to the back. There were tophats and swords involved, too.
Other steampunks have gone all out and made amazing pictures. Here are two for your enjoyment:
And my friend Steff Metal: