Instructions for making one of those:
Catch two flies. The bigger, the better. We got some big flies in Africa
Place them in a container, and drop the in the freezer for a couple of minutes. This should "knock" them out long enough to work with them. Make the plane - paper or match sticks, (must be light enough to be carried by the flies. Get some really gooey glue. Place the flies in a dab of the glue on each wing. Breathe on them to wake them up, and presto - your own aeroplane! Face one fly in the other direction for a helicopter...
Ta
Dwayne