Poor mouse, always the worse for wear. He really should drink some more tea to get over that wicked hangover. The Hatter throws such epic parties, no wonder he's not half there.
Those elves in Santa's workshop are so mischievous! This guy snuck into Santa's magic sack of gifts and from the look on his face it appears he's been found out. Don't be too hard on him, Santa! He just wanted to hang out with you!