Here's a quick and easy way to make 3D glasses. Supplies needed to make 3D glasses are: transparency paper, red and blue marker, scissors and an old pair of glasses. Pop the lenses out of the frame of the glasses. Take the lens and trace them with a marker. Color the left eye lens with the Red marker. Then color the Right eye lens with the blue marker. Put the lenses back into the correct frames of the glasses (Left eye Red, Right eye Blue)And there in your hands is the finished product. Your newly created 3D glasses.