-Princess Zelda, from the Legend of Zelda game series-
This game got a bit larger because I already had a Zelda game on my to-do list (in my idea it was merged in the same game as Princess Peach/Daisy). I wouldn't have outfits from other characters in my version though, but it's not like there's any harm with them either.
This is my favourite dress up of the advent calendar games. I actually like it a lot more than days #24 and #25 (but I'm biased with the subject), but as they have more items I guess they should still deserve to be the last ones.
(also, witness my "use a premade texture and pretend it's a proper background" technique. But it makes the game look so much better!)F.A.Q. here
Other days:                        
Lottery entry by ~Xiaomei23
. Background texture by ~akinna-stock