Can you use a noun + the possessive marker ('s) in the expression 'to make someone's day"? Looking up the dictionary, it seems that the expression is only used with possessive pronouns "his", "her", "your", etc., but not nouns accompanied with the possessive marker. Is it possible to do so?
Finding the solution to an old mathematics problem made the mathematicians' day.
Finding the solution to an old physics problem made physicists' day.
Giving them flowers made the ladies' day.
Giving her flower made the lady's day.