It's a sled! An easily put together sled consisting of 5 small pieces. I guess that's a compliment to Lego's overriding ability to be Lego. Although if I'm not getting a minifigure I'd like the day's gift to be more than 5 pieces, mostly because the Advent Calendar is pretty expensive. Still it compliments the nice winter scene.
Boy, sure hope nothing disrupts this cheery moment.
DUN DUN DUH!