For a real treat, though, try this Flexagon creator — it'll let you choose an image for each "face" of your Flexagon, then print simple, pre-drawn folding instructions like this:
IT JUST KEEPS FOLDING. Meet the Hexaflexagon.
For a real treat, though, try this Flexagon creator — it'll let you choose an image for each "face" of your Flexagon, then print simple, pre-drawn folding instructions like this: