My plan from the start was to give Scare-Jack button eyes. As his face was hooked, I realized that he needed yellow triangular eyes. Finding buttons the right size, shape and color was going to be a problem no doubt.
So I decided to pull out my son's crayola clay and make them. I patted a ball of clay flat the width I wanted. Cut out two triangles. Stabbed two holes in the center with a chop stick. And voila, in two minutes I had two button eyes ready to dry and be painted another day.