There are a bunch of options through the Ear For Each Other Facebook group - current/former CM's that picked up new jobs during shutdowns. We did a birthday door decorating, balloons, gift baskets, cookies, birthday cakes, etc through businesses in that group.
Besides door decorating, all other items were at the front desk for us to pick up at the time we requested (not left in the room) but there are a few companies that will decorate your room/leave things in your room but I don't know how they handle gaining access (maybe you meet them and walk them up?).