Here's how to make them:
Melt margarine in a large saucepan over low heat. Add marshmallows and stir until completely melted. Remove pan from heat. Add Kellogg's Cocoa Krispies cereal. Stir until well coated. Spread warm mixture over bottom of a 13x9x2 inch pan coated with cooking spray. Do not press firmly. Arrange gummy worms over and around clumps of cereal. Sprinkle with cookie crumbs. Press crumbs lightly into cereal mixture. Cut into 2 inch squares when cool. Makes 24 squares.