This is another faithful old craft idea that I've done with my daughters and, way back when, as a child myself.  Accompany it with a rousing song of "The Itsy Bitsy Spider".

Materials:

• cardboard egg carton - you will need one cup from a carton
• scissors,
• black paint (or another color if you want to make a creative spider)
• paint brush
• 4 pipe cleaners (chenille) -- to make the legs
• sharp pencil
• wiggly eyes (we used 4)
• glue

Instructions:

• Cut one cup from a cardboard egg carton
• Use a sharp pencil to poke a hole in the left side and in the right side of the cup (two holes).  We will use these holes to thread the legs through later on.
• An adult should help young children with these first two steps.  If working with a large group of young children, you can prep to this point before craft time.
• Paint the cup black.
• Let dry.
• Thread the four pipecleaners through the holes to make eight legs.
• Bend the pipecleaners to make them look like legs.  You can trim them a bit if you like.
• Glue on the eyes.  I like a spider with more than two eyes, but it's up to you!