How to make yourself a load of eyeballs...
you will need:
Eggs, hard boiled, cooled and peeled
food colour, blue, black and red
clean fine tipped paintbrush
Cut you eggs in half and place into the paper cases.Squirt a ring of mayo around the base of the egg. Then using the paint brush, paint circles onto the top of the egg. Make sure the egg is dry - dab it with a kitchen towel if you are not sure, if it is not dry the dye will run.
Next, use the red to paint of the veins, I found that starting at the bottom worked best. Also dab a bit of red colour along the mayo.
Final touches, use the black to paint in the pupil and a thin black line around the iris, you can add flecks or blue to the iris too if you like.