the 10 cent balsa wood fighter planes with a piece of lead in the nose that we would have dog fights with for hours until the wing broke?
The wing always broke.
Then there was the rich kids model, 50 cents,
that had a prpoeller and rubber bands you would turn so it would fly.
Best was the piper cub balsa kits where you would strecth tissue paper over the frame and wings,
then apply yellow Testors dope to make the paper shrink.
Still remember that smell.