Source google image: https://vignette.wikia.nocookie.net/disney/images/2/22/S2e13_end_page.jpg/revision/latest?cb=20150908053402
Gravity falls puzzle
Source google image: https://vignette.wikia.nocookie.net/disney/images/2/22/S2e13_end_page.jpg/revision/latest?cb=20150908053402