You can use a lot of different things to make eyes for a puppet. It really depends on the type of puppet you’re using, the materials, and of course, the character of the puppet. As mentioned in my post on the basics of puppet design, the eyes are the most important features of the puppet, as they convey the emotion and life of the character. This article includes a video tutorial for one method, a list of other suggestions, plus info about blinking eyes (aka ‘blinkers’).