Methods:
Place graham crackers in a plastic sandwich bag and crush with a
rolling pin. Add a few chocolate sprinkles to make ants, then seal
the bag. Give them to the kids to take outside and eat or let them
pour it into a small bowl and eat at the table--using their fingers, of
course. Variations: Add raisins (call them beetles), red hots
(ladybugs) or mini chocolate chips (spider eggs).

Source: Healthy Treats and Super Snacks for Kids