In 1939 President Franklin Roosevelt proclaimed August 19 to be National Aviation Day. The day coincides with the birthday of Orville Wright, who piloted the Wright Flyer. He and his brother Wilbur are given credit for building the world’s first successful airplane with aircraft controls that enabled them to steer the plane. As such the aerial age began and so it continues, from the Kitty Hawk to the F-35 Lightning II in just 116 years.
To celebrate National Aviation Day, photoshop anything related to aviation (military or civil airplanes, pilots and stewardesses, etc. ). Please Note: Limit 3 Entries Per Player. Many thanks to Deaddog for the themepost Captain Sully On Holiday.

This month is the 50th anniversary of the music festival know as Woodstock. It was held at Max Yasgur's 600-acre dairy farm in Bethel, New York, and was the pop culture music event of the decade and arguably the single most profound event in the history of music. Performances by music icons Jimi Hendrix, Joan Baez, Joe Cocker, Santana, the Grateful Dead and Janis Joplin are still considered landmarks in music history. Thirty-two acts performed outdoors and 500,000 youthful individuals gathered peacefully at Woodstock creating the largest gathering of human beings in one place in history. Woodstock 1969 defined an entire generation and its effects on music and American culture can still be felt today.
To celebrate Woodstock 50, photoshop anything related to the '69 music festival anyway you wish. E.g. showing your favorite Woodstock artist, band, hippie, or Max's farm, 50 years later. Please Note: Limit 3 Entries Per Player. Many thanks to Gummy for the contest suggestion and themepost.

Turning day into night, or day for night as it’s called. Many nighttime movie shots are actually filmed in midday when the sun is shining bright. With some nifty camera settings and post production recoloring, movie studios can change the perceived time of day in almost any shot. Photos can also be changed from day to night using nothing but Photoshop filters and adjustment layers.
For this contest, turn any daytime photo into a nighttime scene. You only need show the nighttime version. Please Note: Limit 3 Entries Per Player. Many thanks to LunaC for the contest suggestion! Themepost created from Design.tutsplus image.

When it comes to obesity, professional athletes are the last people to get obese, since they have to stay fit to perform.
Show how famous sports celebrities would look performing if they got fat. Please Note: Limit 3 Entries Per Player. Many thanks to hobbit90 for the themepost.

This contest continues with a provided source image. This is a great image of Queen Elizabeth meeting with newly-minted Prime Minister Boris Johnson. It's customary for new prime ministers to have an audience with the British monarch and kiss her hand, after they assume the role. Johnson is fourteenth prime minister that the Queen has worked alongside since she ascended the throne in 1952, and first met with Winston Churchill. (image credit: Victoria Jones/Getty)
Photoshop this image of Queen Meets With P.M. any way you wish. Please Note: Limit 3 Entries Per Player.

This Tuesday is the 91st birthday of the "father of pop-art" Andy Warhol. Andrew Warhola (his real name) was an American with Slovak roots and worked as advertisement illustrator for Vogue and other magazines, before becoming famous. Andy coined the phrase "15 minutes of fame", but there's a rumor that he was dyslexic and he really meant 51 minutes :)
To celebrate the upcoming 91st birthday of Andy Warhol, take any photo or art work (painting, sketch, illustration), and turn it into Warhol-like pop art. Alternatively, blend any art work with Warhol's art. Please Note: Limit 3 Entries Per Player. Many thanks to hobbit90 for the themepost Warhol's Likes The Art .

Caricatures first became a popular genre of fine art in the 16th and 17th century and were created by satirists to ridicule public figures and politicians (a caricature with a moral message is considered a satire). They continue to remain popular today, and are used in magazines and newspapers to poke fun at film stars, politicians and celebrities. 
Take any head & shoulders photo of a celebrity/politician and create a caricature. Solo, head and shoulders only (Not full body). Please Note: Limit 3 Entries Per Player. Many thanks to cfc7980 for the themepost.