In March 1945 the Japanese painted the giant image of an American B-29 on the Tien Ho airfield in China. They gave it a burning engine and a 300-foot wingspan, so that when viewed from a great altitude it would look like a stricken bomber flying at several thousand feet. Their hope was that this would induce high-flying Allied planes to drop down to investigate, bringing them within range of their anti-aircraft guns. I don’t know whether it worked.
The Atlantic has a collection of similar deceptive exploits from World War II.