Combine frosting, peanut butter and powdered sugar. Shape mixture into 1 1/4 in. balls. Press 1 cracker into top of each ball.Place chocolate chips in microwave safe bowl and microwave on high for 30 sec. Stir; repeat until mixture is smooth.Dip open end of each corn snack in melted chocolate; place on center of each cracker. Hold for 10 sec. to set slightly. Let candies stand at room temperature for 30 min. Decorate as desired.