Believe it or not, i build this little fly powered plane when i was 15 years old, did it actually fly in the air, yes it did but at the tender age of 15, i did not understand aeronautics as i do today, so the balance of the plane was not correct when i made the little plane.
I happen to find an article on this fly powered plane and thought i would post it for you guys. Its a great little project, very easy to make. The instructions below show the body and wings made of matches, what i did was make the plane out of toothpicks and saran wrap. Your next step would be to find 4 flies which can be challenging but now days you can use a fly trap.
Here are the basic build instructions.