Heat oven to 375°F. Using 2 tablespoons of the butter, generously grease 12-cup fluted tube cake pan. In small microwavable bowl, microwave remaining 6 tablespoons butter uncovered on High about 1 minute or until melted.
Separate each can of dough into 8 rolls. Cut each roll into 4 pieces. Dip dough pieces into melted butter; arrange half of the dough pieces in pan. Sprinkle with chocolate chips and marshmallows. Top with remaining dough pieces.
Bake 24 to 26 minutes or until light golden brown. Cool 2 minutes. Place heatproof platter upside down over pan; turn platter and pan over. Remove pan. Cool 20 minutes.
In small bowl, place both cans of icing. Mix with food color until desired color. Drizzle icing over top of pull-apart. Using licorice and gumdrops, make small spiders. Place spiders on icing.