Shamrocks Shaped Foam Decorations for Irish St Patrick's Day Decorating. Package of 12 Green Foam Shamrocks. Size: 5.75 inches each. Ages 3+. Invite the luck of the Irish into your home with these green Foamies® Shaped Shamrocks St Pats Decor. Perfect for decorating for St. Patrick's Day Irish celebrations and events! Foamies® By Darice Shamrocks Four Leaf Clovers St. Patrick's Day and Irish Themed Decorations and Decor found available and in stock now at the Interior Digs N Gifts Irish Store Shop Online or In store for local pick up.