Using a pencil, draw a 10-in. heart on a waxed paper. Place paper, pencil mark down, on a baking sheet; set aside., In a large microwave-safe bowl, melt chocolate and butterscotch chips; stir until smooth. Stir in the marshmallows, peanuts and potato chips. Immediately spread on prepared pan into heart shape. Sprinkle with coconut; top with cherries and M&M's., In a microwave, melt vanilla chips and shortening; stir until smooth. Drizzle over top. Refrigerate until firm, about 1-1/2 hours. Remove waxed paper. Let stand for 10 minutes at room temperature before cutting.