I made a redstone contraption which turns on campfires (randomly) at nightfall based on the opening of eye blossoms. This is small enough to hide inside the interior of decorative houses and the randomness of the activation of the fires creates an animated atmosphere in the city!

Design is inspired by the discussion between Pixlriffs and Joel on The Spawn Chunks podcast episode 238:)

Let me know what you think of the idea (and if you have any compacting improvements redstone-wise)