I haven't seen this topic here but it's a curious bit of pop culture. In 2005 Nike entered the world of collectible footwear with their SB (skateboarding) line. They released in Aug. '06 a pair of Nike shoes that are colored like Mork's spacesuit. These are supposed to be a tribute to the show and it's star Robin Williams (reportedly a collector of such footwear). To take a gander, go to :
http://forums.nikeskateboarding.org/index.php?showtopic=21134
I don't know much about this hobby (except for seeing the episode of Entourage" about it, "What About Bob?", Season 3, Pt. 1 on DVD). I guess there's no copyright infringement. They aren't officially linked to "Mork", it's more a nick-name (other shoes are called "Terminator"s or "Pee Wee Herman"s, etc.). It certainly brings a new audience to the show (who'd a thought "Mork and Mindy" would have "street cred"?).
I just thought it was interesting to bring up. Any one who looks up the show on ebay can't help but run into the shoe. I also read recently that a company called Steve and Barry's made a deal with CBS Consumer Products to market their shows (such as "Mork", "Happy Days", "Taxi", etc.) on their clothing line. So soon we'll be able to dress up in "Mork" from head to toe.

there are a bunch of pics of them in the photo gallery here, and there was a thread about it a long time ago.