Ace RC used to produce foam wings which were used in a wide variety of plans published in magazines.  The idea was to build a cheap, easy plane without having to cut out ribs.  Quite a few of these planes became very popular.  Unfortunately the foam wings are no longer available, but you can still build these popular airplanes with a set of balsa ribs to make a wing with the same outline.

Leading edge is 3/16″ balsa.  Spars are 3/16 x 3/16 square.

If you prefer a wing with ailerons you can build the wing as shown and add flat 1/8 sheet ailerons.  Or you can trim the tails of the ribs, add a balsa trailing edge stick, and add a tapered aileron to replace the part you cut off.