You can use buttons, beads, marbles, fishing bobbers, ping pong balls...pretty much anything that is round & even remotely resembles an eye. I think what Wes was saying (hope I'm not overstepping myself here wes) was that there is no basic "use this" item for making puppet eyes...some people like ping pong balls, while others use buttons, etc. I am sure there are items out there that people use for eyes that I haven't even begun to think of yet...just wander through the sporting goods & hardware depts of your local Wal-mart & pretty soon you'll be coming up with all kinds of ideas for eyes!! Good luck!