Warning: Do not use a real tealight!
Notes: The floor is friction fit from the top. The remaining elements can be glued in place with cyanoacrylate. Supports aren't required but they help. You can add text to the front of the school house, like in my pictures, directly in Prusa Slicer.
Protip: If sliced with 20% grid infill and oriented at the correct angle, the walls resemble wooden boards and the roof appears to have shingles in the dark. The attached .gcode should already provide that effect.
To-Do: Recreate the bell.