A hexaflexagon is a toy that anyone can make using six pictures, a printer and this software! In fact there's some pictures bundled with the app, so you don't even need the pictures!
After cutting out a shape and following instructions you'll produce a folding puzzle/toy.
It's got some odd mathematical properties, and can be a dangerously involving distraction. See the bottom of this page for links to more information.
That should be enough if you just want to print a few flexagons.
If you're Xmas-averse, click here for a cheer-free version, or here for a even more minimal version. (You'll still have to click on one of the icons).
Here is the sourceforge project page.
This last is badly disorganized because its a dump of links I collected during my hexaflexagon addiction. They are in no particular order
|Jill's World - The Magic of Flexagons|
|Kathryn Huxtable's Flexagon Page|
|Murderous Maths: The Fabulous Flexagons|
|Flexagon Re'flex'ions - Making & Manuevering Trihexaflexagons|
|Hexaflexagons||Until I'd made some instructions of my own I used to link to this page.|
|Adam's World - Flexagons and how to make them|
The Colossal Book of Mathematics by Martin Gardner (ISBN: 0393020231 ) is where my addiction started. If you prefer it there's a paperback version (ISBN: 0-956-25623-5) here, but it seems to be more expensive.
My copy was bought for me as a present by my lovely girlfriend from the Quality Paperback Club. (I think it was $20).
Most of the coding for Hexaflexagon toolkit was done on:
More when I have time...