The athletes competing at the London 2012 Olympics may not get a say in their sports attire - but nail art is one way many of the stars have found to show their patriotism.
Union Jack nails have been a fixture for Team GB girls - from double bronze medal-winner Rebecca Adlington to gold medal cyclist Dani King.
And the trend for red, white and blue nails has gone beyond the Athletes Village - with X Factor winner Alexandra Burke getting in the Olympic spirit with her nail art.
GB Cyclist Dani King
Great Britain's Dani King celebrates with their gold medals after winning the Women's Team Pursuit Final at the Velodrome in the Olympic Park, London, on the eighth day of the London 2012 Olympics.
GB Archer Alison Williamson
Great Britain's Alison Williamson with painted finger nails during the Women's Individual Archery Ranking Round at Lords Cricket Ground, London.
GB Swimmer Rebecca Adlington
Great Britain's Rebecca Adlington celebrates with her bronze medal after finishing third the Women's 400m Freestyle Final at the Aquatics Centre, London.
Australia's Basketball Team
An Australian player's nails are painted in national colours during their preliminary group B match against Great Britain.
Japanese Shooter Yukie Nakayama
Japan's Yukie Nakayama has her nails painted with the Japanese and Britain's colours as she competes in the Trap women qualification at the London 2012 Olympic Games at the Royal Artillery Barracks in London
France Shooter Delphine Reau
France's Delphine Reau, sporting the colors of her country's flag on her nails, adjusts her glasses a she competes to win her bronze medal in the Trap women's final at the London 2012 Olympic Games at the Royal Artillery Barracks in London, on August 4, 2012.
Czech Pole Vaulter Jirina Ptacnikova
Jirina Ptacnikova of Czech Republic competes in the Women's Pole Vault qualification=
US High Jumper Hyleas Fountain
Hyleas Fountain of the United States's tattoo and painted nails during the Women's Heptathlon High Jump
Russian Heptathlete Olga Kurban
Olga Kurban of Russia's nails as she waits to competes in the Women's Heptathlon High Jump
German Beach Volleyball
A German player has her nails painted with German national colours during the men Beach Volleyball round of 16 match against Germany's Katrin Holtwick and Ilka Semmler on the Centre Court Stadium in Horse Guards Parade
GB Cyclist Victoria Pendleton
The nails of Victoria Pendleton of Great Britain during the Women's Sprint Track Cycling Qualifying
Lithuanian Swimmer Ruta Meilutyte
Ruta Meilutyte of Lithuania with her national flag painted on her nails blows a kiss to the crowd at the Aquatics centre after winning the women's 100m breaststroke
Danish Tennis Player Caroline Wozniacki
Caroline Wozniacki of Denmark displays her fingernails decorated with her national flag as she arrives at the Olympic Village
US Tennis Player Venus Williams
US tennis player Venus Williams looks at her hand as her fingernails are adorned with US national colors during a press conference at the Olympic Stadium
US Shotputter Jillian Camarena-Williams
The nails of United States' Jillian Camarena-Williams are seen in a women's shot put qualification round during the athletics in the Olympic Stadium at the 2012 Summer Olympics
French Swimmer Coralie Balmy
French swimmer Coralie Balmy wears nail polish in the colors of the national flag as she prepares for a practice session at the Aquatics Centre in the Olympic Park