I like the Atlanta 'Angry Slaves' for a football team.
Or the 'Radioactive Commies' for a hockey team.
I like the Oklahoma 'Drunken Gamblers' for an expansion NFL team.
San Francisco Miners. The stadium could be nicknamed the 'Cole Hole'.
The Dallas Assasins would be a good soccer team name. Or the Miami Boatmen.
For a basketball team I like the Salt Lake City Cult.
Just a few of the top of my head.