After ensuring all equipment is dry, mix the powdered sugar, Kool-Aid, and baking soda together in a bowl.
Taste the mixture. If a stronger fizz is desired, add more baking soda, 1/2 teaspoon at a time, until satisfied. Adding too much will lead to a salty, chemical taste.
Carefully melt 4 tablespoons of coconut oil by setting the closed jar in hot water. It should take about 15 seconds to melt, so check often to stir and make sure the oil isn't getting too hot.
Add melted oil to sugar mixture 1 tablespoon at a time, stirring after each addition. Only add enough to make sugar the consistency of moldable dough.
Add food coloring as desired. Mix and knead thoroughly.
Roll candy dough into balls of desired size.
Roll balls in a coating of powdered sugar. Place them on wax paper to dry at least 24 hours.