A group of guys from my area go down every year to play in the team tournament as the Sons of Shatner. They have placed well several times, and won twice I believe. I think in recent years, though, they have dialed back on the commitment as they had always geared up for the next year shortly after they get home.
If you've been down before, you may remember their "Riders of the Orkpocalypse," where they had Warbosses modelled as the four horsemen.