My FI and I have been talking about a registry lately. We have plenty of stuff in our home and don't really need anything extra. We have planned a nice cruise honeymoon, about a week long. I noticed on Royal and Carnival that you can register for excursions onshore.
We would request, for example, 2 $20 gifts for..scuba diving, or something along those lines. It can be used for speciality foods and drinks onboard, also.
What do you think of this idea? Is it too strange, or possibly rude?