Cut one cup out of an egg carton. Trim it so that it sits flat (no flaps, etc.).
Paint the egg cup black.
When the cup is dry, use a hole punch to punch 4 holes on each side of the cup (8 total). If you don't have a hole punch, use scissors to poke the holes -- this should be done by an adult only!
Thread a pipecleaner through one side of the cup to the other side of the cup. Cut off any that you feel is too long and then bend the legs as shown in the photo.
Use glue to add the googly eyes and the red paint to paint on a smile.
**Optional - poke an additional hole in the top of the egg cup and add a string to hang your spider with!