Draw a flower template (about palm-sized) on a piece of paper. The petals should not be longer than the diameter of the central circle of the flower. Cut out the flower. Write or draw a prayer onto one side of it, and then fold the petals in so that they overlap each other. Make sure the creases are really sharp. Now float your folded flower in water and it will open, revealing your prayer in a rather beautiful and cool way.
This idea can work any time, but might be particularly appropriate on Mothering Sunday (you could make the flowers on yellow paper) or on Remembrance Sunday (you could make the flowers on red paper).
This idea is archived under the ALL AGE tab, on the Child-friendly intercessions page.