Delivering Elevators with Unearned Costumes

Anyone else noticing the fall-themed costumes (sheep, corn-cob, Mr. Pieman, etc.) adorned by the bitizens being delivered in the elevator? I don’t have most of them, and it used to be that delivering them would get you the costume. That doesn’t seem to be the case now. It feels a bit mean to dangle the costumes in front of us but not let us own them. Am I missing something here? Are they all behind a paywall or something? (Not that I would buy them with real money, just curious).