Ragamuffin Jones - Poll - Reader assistance requested! (Munch / Jones name change upon marriage)

Valentín Jones and Wolfgang Munch have been engaged for 2 life stages already. Now that Valentín is finished with university, they can finally get married and move into a beautiful place of their own to try to accomplish all their financial and artistic dreams, and perhaps raise a very interesting child or two along the way.

Now the question for you, dear readers. When one person has a name like Munch, and the other has a name like Jones, what do you do??