I bought a couple of Xbox controllers recently and they each came with a code for a 14 day free trial of Game Pass Ultimate. I don't need them because I signed up for the $1 for 3 months deal (which FYI as of today is still available) and they need to be activated by Jan 31st.
If anyone's interested let me know and I'll PM you a code.
EDIT: I should also mention that it says the codes will not work for anyone that has previously signed up for a trial.
P.S. I'm posting here because I want someone from the GB community to have them, so please don't sign up for an account just to ask for one!