R5D4 is the greatest thing to happen to the human race.

R5D4, aka Skippy the Jedi Droid, is a R5 unit with a white and red colour scheme. He plays a vital role in the Star Wars saga as without his help, the rebellion would of been obliterated.

R5D4 started his journey as a astromech droid, serving drinks at Jabba's Palace. One day, R5 removed his restraining bolt with the Force, and Force persuaded the Gamorrean guards to let him leave. Skippy wandered the desert for days in search of his destiny, until finally he was picked up by a Jawa sandcrawler. There he had visions of Darth Vader and Princess Leia, and met R2-D2 and C-3PO. Eventually the Sandcrawler stopped, took all the droids out, and lined them up side by side in front of Owen Lars and Luke Skywalker. Skippy immediately sensed the Force in Luke, and persuaded Owen to choose him. Skippy was ecstatic at the undoubtable destiny that lay before him and Luke.

However, R5 soon envisioned that, without Luke, stormtroopers would come and take R2 back to Vader, where he would be destroyed and Leia would be killed, leading to a chain reaction of horror that will include the Rebellion being destroyed, R5's memory being wiped after 3PO refuses to translate his 'rubbish', and Luke dying on Tatooine without ever fulfilling his destiny. R5 knew what he had to do, and suddenly set off a mild explosion inside himself, leading Luke to believe that he had a busted motivator. Skippy then used the Force on 3PO, telling Luke to buy R2 instead. Owen did so, leaving R5 to be destroyed by a stray stormtrooper blast during the later raid, with nobody ever knowing the great deed that R5 had just done.

He also has a great ass.

Skippy Wiki (Star Wars EU)[starwars.wikia.com]
R5-D4 Wiki (Star Wars Canon)[starwars.wikia.com]
Corn Dog Website[corndogoncorndog.com]