Just wondering if this is tacky or acceptable. My fiance and I have lived together for a few years and don't need a lot of things for the house. We have set up a registry but it is fairly small. One thing I would love as a gift is a cash contribution to pay to board our dogs for our honeymoon. I've seen people add items to take with them on their honeymoon and upgrades for the trip itself but this is a little different. Is it tacky to list contributions to our honeymoon dog boarding expenses as a registry item?