Dr Yool: The return of an Advent tradition ... December 01, a star destroyer of some description
Dr Yool: December 02, an Imperial shuttle of some description (but not Director Krennic's judging from the lack of a dorsal fin)
Dr Yool: December 03, you can't beat an angry First Order Stormtrooper
Dr Yool: December 04, heavy weaponry
Dr Yool: December 05, a most excellent X-Wing
Dr Yool: December 06, I have literally no idea what this is
Dr Yool: December 07, Chewbacca roasting a space-puffin (the monster!)
Dr Yool: December 08, another head-scratcher - I can only assume this is Luke Skywalker's island from Episode XIII
Dr Yool: December 09, Episode XIII Luke Skywalker with a mullet and a fish
Dr Yool: December 10, another total mystery
Dr Yool: December 11, we're still stuck solidly in what-the-hell-is-this territory
Dr Yool: December 12, How appropriate for Election 2019 - a Space Nazi! (Actually an Imperial Gunner)
Dr Yool: December 13, another mystery item - possibly the little floor robot from the original Star Wars?
Dr Yool: December 14, clearly I don't know Star Wars half as well as I think I do
Dr Yool: December 15, yay - I know this one, it's a Trade Federation Battle Droid
Dr Yool: December 16, and we're back in "no idea" territory
Dr Yool: December 17, this could be literally anything
Dr Yool: December 18, a Rebel soldier, the Star Wars equivalent of a Star Trek Redshirt
Dr Yool: December 19, I knew what this is but didn't know it's name - thankfully, the internet's resident Star Wars nerds have identified it as a mynock, resident of the asteroid field in The Empire Strikes Back
Dr Yool: December 20, a teeny diorama of the Rebel base on Hoth
Dr Yool: December 21, an excellent little Bespin Cloud Car
Dr Yool: December 22, ... and now a Bespin Cloud Car Pilot to fly it
Dr Yool: December 23, a festively-attired Power Droid
Dr Yool: December 24, and, finally, ... a festive but rather unhappy-looking Port - perhaps due to the circumstances around Chewbacca's earlier appearance in the Advent Calendar!