Combine vanilla ice cream, crushed graham crackers, and chocolate sauce until well-mixed. Shape the mixture into a ball using cling wrap. Dip the ball into melted milk chocolate and coat it with fluffy marshmallow. Use a torch to toast the marshmallow until it turns golden brown.

Transform the ice cream ball into an octopus face using melted chocolate, graham crackers, and chocolate pieces for decoration.

Sprinkle a combination of powdered sugar and cornstarch onto a baking sheet. Arrange chocolate chips within the mixture, then pipe marshmallow on top to form tentacles. Position the marshmallow tentacles around the ice cream octopus. Serve and enjoy!