A demonstration of the ponyhexaflexagon.
The print-out can be found at: http://fav.me/d9hpzv1

I made a tutorial on making this: https://youtu.be/pTf61-9ILxk

I recommend ViHart's video for a thorough explanation of hexaflexagon: https://www.youtube.com/watch?v=VIVIegSt81k