Several limited pieces have been produced to commemorate specific events, such as the opening of the one-hundredth Games Workshop store, twenty-five years of Games Workshop, or twenty-five years of Warhammer and Warhammer 40,000.
A number of promotional special editions were available for the various GW Organizations to use in their own promotions. They have become available at so many different events that I have stopped trying to list the events. Some have later become available as direct sales items.
In 1997, they offered a huge, all metal, version of the Thunderhawk Gunship in a wooden presentation case, a truely awesome beast, and utterly impractical on the table, not that that stopped anybody.