Names you really liked, titles you're particularly proud of, or just any that stuck with you for whatever reason, be they one you came up with or your partner did. Would also love to hear some context for how you came up with them! If you brainstorm multiple for a thread and then pick one, are there any rejects that you still really liked?

Some old ones of mine:

Thicker than water — From the "blood is thicker than water" saying (no covenants here I'm afraid). It was a thread between siblings, hence the implied blood, from a family with a water motif.

Blades of a feather — "Birds of a feather flock together." From google, people of the same sort or with the same tastes and interests will be found together. In this case they were bonding over swords