I did something last year that could be converted to an advent calendar. I have three grandkids under 6, and we have a great thrift store in town. I picked up 24 Christmas books throughout the year, with the one for the 24th being The Night Before Christmas. I put them all in a large, wrapped Christmas box, and they were able to pull one out each night. I can’t take credit for this idea, though. I read about it somewhere years ago, and I did it for my 18 yr. old grandson when he was little, too.