I have never met Jerry Hutchins but I do know that s/he does indeed have plastic eyes. Possibly for real, but DEFINITELY for sale. I just received my first order from lets say him. The red and yellow eyes are 30mm and the green ones are 24mm and they cost, respectively as they say, $8.95 and $6.00 for 10 pairs. I usually use buttons for eyes, but sometimes my plushies go to homes that have young children. In those cases, safety eyes like these are a great way to go. Plus, since my creatures often only have one eye, I get a lot of mileage out of these.
If you're interested in finding out more about eyes and other body parts that you can get from Jerry here's his online store.