Place your M&Ms in the freezer, as well as the sprinkles. If using homemade popcorn remove any unpopped kernels. Put the popcorn in a large bowl and toss with salt if using unsalted popcorn.

Heat butter in a sauce pan over medium heat. Once melted, add the marshmallows and keep stirring until just melted. Do not boil. Remove from heat and stir in vanilla extract.

Immediately pour over the popcorn. Use a rubber spatula to mix and coat the popcorn evenly.

Let the coated popcorn sit for 2 minutes, and line a baking sheet with parchment paper. Add in your candy from the freezer, as well as 2 tbsp of sprinkles. Stir to coat.

Pour some sprinkles in a small bowl, and grease or wet your hands. Use approximately 1/4 cup of the popcorn mixture to form balls (I used a ¼ cup cookie scoop), then use your hands to pack into balls. Roll each ball in the bowl of sprinkles to coat the outside lightly.

Place the balls on the parchment lined baking sheet to set. Enjoy!