USS Balao (SS-285) had the honor of playing the pink submarine in "Operation Petticoat".
 There actually was a pink submarine in the south-west pacific early in the war, for the reason described in the movie. It was I believe a Narwhal class, which were used for island supply, and removal of personel. The pink color was arrived at by mixing red lead, and grey. 
The bizarre case of the rejected requisition for toilet paper actually happened to the submarine, USS Skipjack and a sarcastic letter, in reply, was sent to the Naval Supply Officer at Mare Island, CA.
 USS Balao (SS-285) was repainted in her pink colors in 1975, in honor of her starring role, but was repainted a short time later, as the humor wore thin. 
Bob Hope always said it was his biggest regret that he turned down this movie.
Character is what you do when no one is looking. 
Few things are harder to put up with than a good example.- Mark Twain
Make yourself an honest man, and then you may be sure that there is one less scoundrel in the world.--Thomas Carlyle