Combine the milk and the sugar in the cup or pitcher of your blender. Blend on high speed for 30-60 seconds.
Put one cup of fruity pebbles cereal, 1 cup of heavy cream, and the milk mixture into a container with a cover. Put in the refrigerator for at least 4 hours, but overnight is better.
Strain the fruity pebbles mixture so the milk & cream mixture goes into a large bowl or pitcher and the soggy cereal stays behind. Discard the cereal.
Add the lemonade and fruit punch flavorings and stir.
Ice Cream Maker Instructions
Pour ice cream mixture into your ice cream machine and follow the manufacturer's directions to churn the ice cream.
When done, you can serve right away and top with Fruity Pebbles cereal. If you like a harder ice cream, put the ice cream into freezer containers and freeze for several hours before serving.
Ninja Creami Instructions
Pour the ice cream mixture into the Creami container, cover with the lid and freeze for at least 8 hours. Once frozen, place the container into the Creami machine and select the ice cream function.
If the ice cream isn't creamy enough, add a few tablespoon of heavy cream and respin. Serve with Fruity Pebbles cereal on top for crunch!