Have always loved specialist games. Case in point - blood bowl.
When I recently got back into the hobby, the first thing I painted was the Orc team from the blood bowl boxed set. With the Orcs it was easy to paint different pieces different colours so they all look different, so I decided no conversions for these guys - I converted the human team instead (more on that later...)
I really wanted to have fluff behind the team so I based them on the 1999 superbowl champion Rams. Great icon for an orc team, I went for blue/yellow instead of purple/yellow because my dark elves are purple. I named every player after a real Rams player of that year and gave them the correct jersey #.