In large microwavable bowl, mix cereal, snacks, pretzels and peanuts; set aside.
In 2-cup microwavable measuring cup, microwave corn syrup, honey and butter uncovered on High 1 to 2 minutes, stirring every 30 seconds, until butter is melted and mixture is boiling. Stir in vanilla. Pour over cereal mixture, stirring until evenly coated.
Microwave uncovered on High 4 minutes, stirring each minute, until mixture is well coated and glazed. Spread on waxed paper or foil to cool. Break into bite-size pieces. Store in airtight container.