As espn and scanner pointed out (and also volunteered) you might want to ask a couple of other ClubSNAPpers to back you up so that at least your friend has an enlarged pool of photos to choose from (but if you do, make sure that the roles/responsibilities are discussed prior to the shoot eg. who takes what, who will be main, who do backup/candids)
If shooting digital which doesn't entail lots of $$ outlay in printing if they just give the images on CDROM to the couple, I am sure ClubSNAPpers will be willing to donate their time and cameras in exchange for
kopi and
Bak Chor Mee