You will need an apple, knife, green paint, construction paper, and a paper towel.
Start by cutting the apple right down the middle and pick out the little seeds.
Paint one half of the apple with the green paint, or you can have the kids dip it on the plate.
Have the kids stamp the apple against the paper REALLY hard so the paint goes on good. Have them do it three times to make a shamrock shape
Grab a paintbrush and add a stem coming out from the bottom with green.