Leprechaun's Kiss

1 square BAKER'S Semi-Sweet Chocolate,(or green candy melts) melted optional
2 cups boiling water, divided
2 pkg. (3 oz. each) JELL-O LIME Flavor Gelatin
1-1/2 cups cold water, divided
Ice cubes
1 cup thawed COOL WHIP
Whipped Topping Decorations: assorted St. Patrick's sprinkles and candies
1. DRAW heart design or write Valentine's Day message in each of 8 (6-oz.) clear plastic cups by piping chocolate onto insides of cups. Refrigerate until chocolate is firm.
2. ADD 1 cup boiling water to 1 pkg. gelatin mix in medium bowl; stir 2 min. until completely dissolved. Stir in 1 cup cold water; pour into cups. Refrigerate 1 hour or until gelatin is firm.
3. MEANWHILE, add remaining boiling water to remaining gelatin mix; stir 2 min. until completely dissolved. Add enough ice to remaining cold water to measure 1 cup. Add to gelatin; stir until thickened. Stir in COOL WHIP; spoon over gelatin layer in cups. Refrigerate 3 hours or until firm. Decorate as desired.