I think you can post your reindeer on Facebook for others to adopt. Since it looks like you can only catch one reindeer a day, you either have to make sure you collect one everyday between 1st and 24th or adopt some from Facebook if you want 24 or more.
I'll happily settle for a red Rimowa Trolley so won't bother with Facebook.
Who wants two Y tickets anyway.
No, I think Christmas trees are just a gimmick... as is the whole game.