I should have used a circle instead of a square, but it still worked. I wanted to have enough paper for the kids to glue on petals. I made simple petals from construction paper. I told the kids to arrange 8 petals around their faces. It's best to do this by placing down all the petals before gluing so you know they'll go all the way around.
Once they liked how it looked, they used a glue stick to attach them to their picture and the square paper. Then they took another 8 petals (sometimes in the same color, sometimes in a different color) and put those on between the first set of petals.