Stranded in Java after the Japanese invasion of 1941, the Dutch minesweeper Abraham Crijnssen found a unique way to sneak out: The crew covered the decks with jungle foliage and painted the hull to resemble cliffs, giving the ship the appearance of a small island.
Traveling only at night and anchoring near shore, the minesweeper gradually made her way to West Australia, becoming the last Allied vessel to escape Java and the only one of her class in the region to survive.
(Thanks, Paul.)