To make Chocolate Decorations, in 1-quart saucepan, melt 1/2 cup chips and 1 teaspoon shortening over low heat, stirring until smooth. Pour chocolate mixture into small plastic bag, large envelope, squeeze bottle or pastry bag fitted with small pastry tip; cut off small corner of bag or envelope to pipe out chocolate. Draw desired designs, such as twigs, on plain paper using dark pen or pencil. Place paper with designs on cookie sheet; cover paper with waxed paper. Pipe chocolate over outline of designs. If desired, sprinkle with granulated sugar. Refrigerate 30 minutes or until firm. Carefully remove designs from waxed paper, handling as little as possible.