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

Step 2 What you will need

Although I tried several different routes these are the items which I used which turned out working best for the least money.

Items:
-1 inch or 25 mm "Bolo" style hair bows (I found mine at a local beauty supply store for a dollar a pack)
-Cheap acrylic nail polish (got this at same supply store for $0.99 a bottle)
     -Clear
     -clear top coat
     -Semi opaque pearlescent with a slight yellow tint (the brand I got calls it melon)
     -Black (if they don't have a flat black you'll have to scrape off the shine)
     -Blood red
-One bottle of "high dollar" ($3.98) White, high solids acrylic nail polish often used for blending and filling.
-Cheap acrylic paint (This I found at one of the local Dollar Stores for, you guessed it a dollar.)
-Cheap hobby paint brushes (found at same Dollar store)
-Colored chalk (again, dollar store)
-Unwaxed dental floss (This I had, but again you could pick some up at a dollar store)
-Crystal clear craft glue (I found this at a local craft shop for $3.49)
- 18 millimeter Plastic "googly" eyes (got a pack of them from same craft shop for $1.49)
-Deep red yarn {synthetic} (I got this at a local second hand shop for $0.50)

These are the items for the eyes themselves.  If you have problems finding any of them in your local area/country you can probably get them off the net but that will add to the cost of your eyes.  If all else fails, be creative.