1Embroidery HoopA steel ring or even hula hoop are other ideas.
Greenery
Flowers
Floral WireZipties and Twine are alternatives.
Door Hanger
Instructions
Cut any extra-long stems, keeping at least 6 inches. Lay the greenery evenly around half of the hoop. Add in the flowers in a way that covers the screws.
Attach the leaves and flowers to the frame using large zip ties or floral wire. Trim the tails from the zip ties.
Fluff the front as desired and hang with either a ribbon or a door hanger.