They actually probably had a low key engagement, but how cute would it be to incorporate these cards into a scavenger hunt of some sort. IE funny card on the outside, with a sentimental note on the inside and a clue to where to fine the next card...all leading to someone on one knee with a diamond ring or alternative if you're not into diamonds). Just saying, that could be cute, no?
This also caught my attention of how to "pop" the question. Oh. Puns.
Pop-up Proposal from Kyle Olmon on Vimeo.