Microwave semi-sweet and white chocolates in separate medium microwaveable bowls as directed on package. Stir 1/3 cup cookies and 1 Tbsp. cranberries into chocolate in each bowl.
Drop spoonfuls of the 2 chocolate mixtures alternately onto waxed paper-covered baking sheet; swirl gently with knife.
Sprinkle with remaining cookies and cranberries.
Refrigerate 1 hour or until firm. Break into pieces.
