Who knew sand art could be so tasty?

I will say right up front: it takes a bit of time to sort the cereal by color. However, I did end up with enough free time to get some chores that had fallen behind done while my daughter did the sorting. Win-win!
All you need to make this is colored cereal. You can do colored flakes like Fruity Pebbles, but I went with the Fruit Loops style. The large O’s were a lot easier and quicker to sort.
So, First: sort your cereal into separate containers by color.

With a food processor or blender, grind the cereal down into a sandy texture. I couldn’t get it completely into a sandy powder, but it was good enough for a child.

Once all of the colors are ground, get a tall/slender see through container and let your child have at it.

Best part is that when they’re done, they can still eat it.