You have to find someone who would need the points. The rental board here on the DIS is an excellent place, but if you don't qualify to post for free, then paying for a subscription plan probably would cost as much as you could get for the transfer.
If you find someone, call MS in a three way call with the other member and ask to transfer the points. Don't mention that you are being paid for the transfer, it's not allowed (in theory, in practice it happens all the time and MS close both eyes).
If you can get $12pp it means $72, on top of which you need to pay taxes. Not worth the effort. Maybe gift them to a friend.
I don't know if the moderators would allow a gift-for-charity post. Find someone who takes the transfer and in exchange pay to a charity $70 or whatever they want.