Print! Cut! Fold! Glue! Alien UFO

The Pop UP Squares on pages 11, 13, and 15 work like magic. It's just a simple square with two slits cut in each corner. But when it's folded, it becomes a 3D Pop UP Paper Toy that changes shape, and can even turn inside out. This is one of those, you've gotta see it kind of things. There's no describing it. I have videos of me building these nifty UFO Paper Toys at: http://jemoores.com/post/455083940