Padding a wire wreath with straw or hay creates a full, rounded base that can support a variety of materials. Leaves, dried flowers, or even clamshells can then be pinned or glued onto the soft form -- although a straw wreath is so beautiful, you may want to hang it on its own. You'll need several armfuls of straw, which is readily available in bales at garden centers, riding stables, and some farmer's markets.