Protect them from themselves, may they have clean glass, enough SD cards,
a second shooter, clean underwear after the event, and fully charged batteries.

May there be an abundance of good weather, and good indoor ambient lighting. 
Prayerfully, a Catholic Priest who allows the use of Flash if not.

May he or she find the perfect Bride, a Bride who is understanding, listens carefully, 
duct taped her mother, drop dead gorgeous, under two hundred fifty pounds and
 is not a card carry-ing member of Bridezillas, Inc.

May the caterer service the meal with etiquette and an approach 
to the level of cuisine befitting the occasion even if it's only 
Hamburgers and Wings and may the Wings be mild, thank you.

May the flowers in the Church be as ordered and the selection coordinating with the 
rest of the styling.  No Ragweed, Venus Flytraps, Poison Ivy,  
nor stuffed Bats unless it's a Gothic gig.

May the limousine arrive in time, with the groom sober,
 and the best man remembering the ring or where he last left it.
May the flower girl have a fresh diaper on and not try to
beat the little boy ring bearer to death, cause he stole a kiss.

May no one or many former lovers still awaiting child support
stand up in chorus when the Priest asks, 
" Is there someone who is against this marriage."

When it's all over may the photographer, "say thank you Lord" and 
know and believe he got pictures worthy of publication, and he did 
the job to the best of his ability.