Unfortunately, once we close sign ups, we can't take anyone else.
If you still want to send some happiness out to someone, you can always sign up to be a rematch Santa. This is when you give to someone who does not get a gift from their original Santa. In return for being a rematch Santa, you will not receive a gift but you do get a trophy on your Reddit Gifts profile to show how awesome you are. To sign up as a rematch Santa, go to the exchanges page and select the exchange you're interested in gifting for. Please select “Rematch” from the menu options provided on the exchange page to pick the number of people you would like to send a gift to and sign up.