Some ideas for team themes
1 (This probably amuses only me -) World of Warcraft characters who found themselves in the wrong game.
"Hordies and Allies" can constantly insult each other and we can scream scream "look at me, I can fly, I must be level 70"
"Where's the Inn I need a quick hearthstone" oooh the posibilities are endless
2 Alien SWAT team or Police force. Somthing like the Roughnecks in Starship Troopers only well er Aliens. We could not just agree on colours but on our emblem as well.
3 Post Apolocolyptic survivors - rippied clothes, Mad Max and Mutations
4 Trailerpark Trash - Villians too stooopid to know they are bad (Bagsy I be Cleatus)
4 Possesed Superhero - Cheesy 1950 hero types with bold simple costumes and names like "Kid Dynamte" but slightly twisted
You may already have a theme but I was bored at work....
Mark