My friends will be leaving the country a few weeks after their wedding. It will then, of course, be more practical to receive gifts in cash to help them start their life in another place. How do we send this message to the guests without getting tacky?
That's a tough one, Jenny, as it is never polite to put anything about gifts (cash or not) in the invitations. It's like telling the guests that they need to give the couple something.
But you can always tell close family members and friends about the couple's preference. That way, when a guest tries to ask them gift ideas for the couple, they would know what to say.
I'm sure some etiquette experts would disagree, but I say it's only practical to inform guests that the couple will be leaving after the wedding and that they cannot bring gift items with them.
I saw one invitation that has a little poem inserted in it. The poem was about the couple preferring cash over gift items. Well, the poem was very nice, I didn't find it rude. It really depends on how you say it.
I think they can make use of wedding wishing wells. Have siblings, close friends, bride's maids and groom's men spread the word about their well, rather than including it in the invitation cards.