Bake, and cool nine inch pastry shell,following label directions. Cut 3 musketeers bars into small pieces. Combine gelatin and cold water in large saucepan, let soften 5 min. Add 3 musketeers pieces. Heat slowly over low heat, stirring constantly until candy melts and gelatin dissolves. Remove from heat. Stir in ice cream and orange rind until ice cream melts. Place mixture over bowl partly filled with ice and water, stir occasinally until mixture is thickened. Pour into prepared pastry shell. Chill 3 hours, or until firm. Garnish with puffs of whipped cream and candied orange peel if desired.