My husband and I each kept our names and hyphenated DS'. When we've traveled internationally, I think it's been helpful for DS to have both. My husband and I are of different races, and thought it was especially important to have an obvious name connection because we didn't know whether DS was likely to look like one or the other of us, or neither.
Advice About Keeping Your Professional Name? - Page 2
We hyphenated both our last names for ds. I wanted a totally different last name for ds, but we couldn't come up with one we liked and I caved to familial pressure of ds having dp's last name, but there was no way I was going to let him have *only* dp's last name. I feel like i know kids with every combination, just dad's, just mom's, one dad's but not the other dad's, totally different name, hyphenated, middle name is one of the parent's names.
My housemates just adopted, they have the same first name (for annoymity's sake, let's say Rich and Richard) and they gave their baby the last name Richards. I know 2 couples who are Dan and Danielle they could have (although neither did) given their kids the last name Daniels.
I'm not married to dp, but if he's in the hospital I just say "My husband, John Smith, is here and I want to see him" It's not like anyone asks for a marriage certificate.