Idek if this would be a proper theme rather than a prompt but what about: otyer holidays (like: bruce's mother was jewish, or an actual winter solstice celebration for diana)?
Yes! You can send in themes to me however you’d like to~ Via an ask is A-OK!
Someone on twitter suggested the solstice prompt, but since this is a holiday calendar, I can make one of the themes ‘other holidays’ or I can try to have one for ‘Winter Solstice’ and maybe ‘Hanukkah’? Which would peopel prefer? ~ Maiden