Another Hobby Lobby company is becoming involved in a lawsuit.

http://www.oklahoman.com/article/3881416?embargo=10

Beneath the thousands of twinkling Christmas lights on display at the Oklahoma City retailer North Pole City, a turf war is brewing with greeting card giant Hallmark Cards.
The Oklahoma City seasonal store, which sells Christmas ornaments and holiday collectibles, filed a federal trademark infringement lawsuit on Monday against Hallmark over the use of the name North Pole City.

The retailer filed the lawsuit after it learned of Hallmark's plans to use the North Pole City name on its merchandise, store owner David Green said in a statement released through his attorney Tuesday.]
Founded by Green, the North Pole City store has sold decorations and Christmas themed items from its 26,000 square-foot building off Interstate 44 since the early 1990s. The store's candy-striped pole sign with Santa climbing up the side is an Oklahoma City landmark.

Green registered the North Pole City name with the Oklahoma secretary of state in 1997 and the business has operated the website northpolecity.com since 1995. (North Pole City's David Green is no relation to the David Green who founded and leads Oklahoma City-based retailer Hobby Lobby)
I'm thinking they have a fairly good case here.