Place Froot Loops in one small bowl and mini marshmallows in another.
Encourage children to use the shape of the plate to build a rainbow by lining up Froot Loop cereal in the shape of the rainbow.
Have them line Froot Loops in rainbow color order: red, orange, yellow, green, blue, and purple.
When their rainbow is complete, have them use mini marshmallows to build fluffy clouds at the end of the rainbow.
Once complete, they can eat their tasty snack craft.