Must haves for weddings

I don’t seem to go to a lot of weddings these days, but I was interested to read (in a recent piece by Ruth Graham on the Poetry Foundation website) what happens at nuptials in America. Ruth writes:

The aesthetics of such a wedding [hers], at least for couples of a certain age and posture, are practically set in stone: indie pop music, mason jars, white Christmas lights, wildflowers. And poetry. The practice of including a poem in a wedding ceremony is so widespread and mainstream… But which poems to choose?... Googling brought up near-identical lists of suggested readings (Robert Louis Stevenson’s “Wedding Prayer”, Frost’s “The Master Speed”).

Not just pop, but indie. Not just jars, but mason ones. Not just Christmas lights, but white ones. Not just flowers, but wild ones.

And the Stevenson poem? I certainly hadn’t realised that he had written a “wedding ” poem. Well, he didn’t. It’s the first stanza of a lovely prayer he wrote while living in Samoa, where the family had prayers every evening. It’s not really connected with weddings at all, in fact it’s called “For Success”:

Lord, behold our family here assembled.
We thank Thee for this place in which we dwell;
for the love that unites us;
for the peace accorded us this day;
for the hope with which we expect the morrow;
for the health, the work, the food,
and the bright skies, that make our lives delightful;
and for our friends in all parts of the earth,

            and our friendly helpers in this foreign isle.  

Of course, at American weddings, the last line is usually omitted.

I wonder what are the current “must haves” at British (and other) weddings?