happy st. patrick's day with cloverleaves

background card celebrate celebration celtic classic clover cloverleaf cloverleaves clovers coaster culture day decoration design event festival festive floral flower folk fortune four gaelic green greeting happiness happy hearts holiday illustration invitation ireland irish leaf leaves lettering luck lucky march ornament party patrick patricks pattern placemat plant postcard quadratic quatrefoil religious saint seasonal serviette shamrock spring square symbol tablecloth traditional