Arrange two pretzels together on a silicone baking mat to form a butterfly shape.
Place the red, blue, and yellow candy melts in separate bowls. Microwave in 30-second increments, stirring between each interval, until melted and smooth.
Use a small spoon to fill the openings in the pretzels with the melted candy.
Add a little extra melted candy down the center where the two pretzels meet. This helps hold them together and creates the butterfly “body.”
While the candy is still soft, decorate with sprinkles, Red Hots, or other toppings, if desired.
Allow the butterflies to harden completely on the silicone baking mat or wax paper. Once set, carefully lift them off and enjoy.