Paper: squares with a side length of 15 cm, red/white kami
tall house: 5.3 cm wide, 10.5 cm high
small house: 9.2 cm wide, 8.5 cm high
As shown for the tall house, you can open the models to reveal a space where you can leave a short message.
Halfway through folding the models, you need to cut two slits into the paper.