were celebrated Billboard examples. In the 1990s and 2000s, two of the three main airline alliances adopted Billboard liveries for application to selected aircraft operated by alliance member airlines. Low-cost carriers such as Ryanair and easyJet have also employed the use of Billboard liveries on their aircraft. Specialized liveries Commemorative liveries Commemorative liveries are used to celebrate a milestone in an airline’s history, including anniversaries. One such example would be ATA Airlines "25th-anniversary" paint scheme, celebrating the airline's inception under George Mikelson, the founder of American Trans Air, or SkyWest Airlines paint scheme used to commemorate the 30th anniversary of that airline. South African Airways had one of their Boeing 747-300s specially painted in rainbow colors to transport the South African Olympic team to the 2000 Summer Olympics in Sydney, Australia. The aircraft was dubbed the Ndizani. Heritage or retro liveries A heritage livery is a restoration of a past livery for publicity purposes or to stress the length of an airline's experience or tradition. Airlines, the media, and enthusiasts call aircraft painted in heritage liveries "Retrojets." Logo Airlines often apply and paint specialized liveries to their standard airline liveries and logos of their aircraft. a logo when used for charter service; sports teams and touring rock bands are common examples a logo of a prominent charity, when the airline and charity have a partnership images of a city, usually a hub or other city of importance to the airline advertising for a company (logojet) Southwest Airlines is famous for its various liveries promoting Sea World (painted to resemble an Orca), various US states where Southwest has operations (painted to resemble the states' flags), and other entities such as the NBA and the Ronald McDonald House. Boeing painted a pre-delivery 747-8 to commemorate the Seattle Seahawks' 2014 National Football Conference Championship and appearance in Super Bowl XLVIII. The livery features the Seahawks logo and a "12" on the tail in reference to the team's fans, who are known collectively as "the 12th man." An update in 2015, with "In it to win it!" added to the aft fuselage, appeared in a flyover of Lake Washington during the Boeing Seafair Air Show in August of that year. Marketing All Nippon Airways has featured a number of aircraft in a promotional Pokémon livery, known as the Pokémon Jet. EVA Air partnered with Sanrio to create a number of "Hello Kitty Jets." Other