Line a large baking sheet with parchment paper to prevent sticking and ease cleanup.
In a microwave-safe bowl, melt the white vanilla baking chips in 30-second intervals, stirring between, until smooth and melted. Avoid overheating.
Combine Corn Chex and Bugles corn snacks in a large mixing bowl. Pour melted baking chips over and mix gently to coat evenly.
In separate microwave-safe bowls, melt pink, blue, and purple candy melts using the same method. Drizzle each color over the Chex mixture for vibrant color.
While warm, add decorating sugar sprinkles and multi-colored sprinkles. Toss gently to distribute evenly.
Optional: Mix in marshmallow pole twist candy for extra sweetness and fun.
Spread the mixture evenly on the prepared baking sheet and allow to cool completely to set the coatings.
Optional: Lightly spray cooled mix with gold shimmer mist for a magical sparkle.
Break up any large clumps and serve your colorful, crunchy Unicorn Chex Mix!