Line a baking sheet with parchment paper or wax paper. Spread popcorn on baking sheet in an even layer.
Place each variety of chocolate / candy melts into a individual microwave safe bowl. One at a time, melt in the microwave in 15-20 second intervals, stirring after each interval, until completely melted.
Drizzle the melted chocolates on the popcorn and then sprinkle on the sprinkles and mini marshmallows while the chocolate is still wet.
Allow chocolate to set before serving or packaging (shouldn't take longer than 1 hr).
Notes
- You can pop your own popcorn or use store bought- If you are in a hurry, you can shorten the time it takes the chocolate to set by placing the popcorn in the refrigerator.