If you don't want to tear apart a good set from your own car then do what I did. I waited till a rainy day when we had a really hard rain. That'll usually brings in people with bad wiper blades. Just dig through the trash for a smaller car blade. Then proceed to tear it apart.
You are after the thin flat wire that holds the rubber blade in place.
Measure, and bend it in a u-shape and JB weld it in place, and your done. Just bend to get a tight fit so they don't fall out of your ears.