Nice, it's not Christmas yet ... so also perhaps add an option for a different tile set and you can have all holidays covered. (Halloween might provide some nice pumpkins, skulls, and other sorts). I've been using https://freesvg.org/ for my ugly clipart as needed.
Still 2 days left and I've said I was done yesterday to only add even more today!
http://www.lostwords.org/falling-block-jam-start/fbgj.html