Eyeballs for special effects, Halloween, or animatronics really cheap.

Step 3 Tools and other assorted items needed

Step # 3 gather the tools you will need

You will need:

-A pair of sharp scissors
-An exacto knife or something similarly as sharp
-A cutting board or a sturdy surface which can be cut on without worrying about damage
-At least 400 grit sand paper, fine sand paper is usually 250 grit and won't work, the higher the number the better finish the sand paper leaves.
-Candles or some other source of controlled heat
-A hair dryer

Items that might be helpful:

-an electric drill
-a piece of wire coat hanger
-a pencil sharpener
-a large piece of paper or a disposable plate to mix paint on
-a pair of pliers with a cutter
-some time to do a search for and study images of irises of people's eyes (or whatever critter your trying to make it look like)
-a container for water to use for thinning paint and one for washing out brushes
-paper towels or tissue for cleanup
-something to make a stand to hold your eye while you turn it into a masterpiece
-I sharpened the end of one of the paint brushes to help with a later step
-I trimmed one of the paint brushes down to about 8 or 10 bristles to use for detail work using my knife.