Cash check; send normal thank you note; ignore snarky comment
Cash check; send chatty note apologizing for being out of touch, updating them on your life
Cash check, send no note as passive aggressive payback
Don't cash check; no note
Don't cash check; send newsy letter updating then on life.
Don't cash check; send them earnest letter apologizing for past mistakes, pleading for improved godparent-goddaughter relations
Cash check; use proceeds to pay psychic to explain what I did, exactly, that pissed them off so much that they thought it apporpriate to taint my birthday card with a steaming pile of guilt trip
