Back when I was a very young teenager, I used to take the plans out of magazines, usually just one page, and cut small balsa scraps into parts to build a tiny model of whatever the plan was. I still remember a little Waco Cabin that I built and the wingspan was about 4 inches. I covered it with toilet tissue and painted it white. As small as the parts are, it doesn't take long to cut one out. Can make a good rainy day project while you are waiting for the dope to gas off on your champion stunter.
You can cheat a little and make wings out of sheet instead of fooling with tiny ribs. Lots of room for ingenuity.