Eyes are made creating molds of  delrin balls that are coated in Krylon Crystal Clear spray paint. The sculpts are made with a specific size, which is later translated to the head core so that the eyes can be easily pushed into the receiving holes. Multiple eyes are cast from plastic and then drilled with machine drill bits to simulate the iris and pupil. Then they are painted and finally, are coated with clear urethane so that drilled holes are filled. A small pinpoint hole is drilled into the front after the final cast so that animators can move the eyes.