You'll have the luck of the Irish on your side with Shamrock/Trinity Love Knot placecard holders as your wedding reception favors.

Representing the three domains of ancient Celtic belief: the underworld for the past, the earth world for the present, and the sky world for the divine, the Trinity Love Knot is a symbol of everlasting love. And these wedding reception favors, decorated with this special symbol, are useful and attractive as placecard holders for your tables. Each of these shamrock-topped placecard holders / wedding reception favors is 4" tall and comes in a individual poly-bag with placecards included.