For the furniture in the mayor's house, you could do some sort of 'arena' with Leo sculptures (when it comes out), Saharah's desert on the floor, and it would be the place where you train your animals. You could also put some stools for the lions to sit on, also furniture from the western set (cow skull, watering trough, western fence), a detour arrow so the animals know what path they should take...
The ship cannon for the guy that gets shot from a cannon, and you could have a room where you treat sick animals, like so many made hospital themed rooms.