As I've mentioned before, we love in and out works. They help to develop fine motor skills and hand-eye coordination. In the Montessori classroom, works progress from easiest to most difficult, concrete to abstract. This flower work is the most difficult in and out work we've put out yet.
I filled a basket with some dollar store fake flowers and placed it on L's floor table with an upside down colander with very small holes. I showed L how to put the stem of a flower into one of the holes, and L quickly continued to fill the rest of them. She loves arranging the flowers and naming their colors as she goes.