- Flexagon Re'flex'ions - http://hometown.aol.com/verndrei/flex00.html
- Several possibly new trihexaflexagon phenomena are presented. The wide spectrum of findings including explorations with magic squares, palindromes, and much more freshly fans the flexagon fun.
- Flexagons - http://www.geocities.com/capecanaveral/hangar/7773/flexagon.html
- Contains instructions on how to fold a flexagon, history of flexagons and printable models of some.
- Flexagons - http://www.mathematische-basteleien.de/flexagons.htm
- Includes a definition of the word, instructions on how to make a Trihexaflexagon, how to flex it and information about it and another flexagon.
- Hexaflexagon Toolkit - http://hexaflexagon.sourceforge.net
- A free application that can generate a hexaflexagon template and folding instructions from six user selected images. Examples Source Code included.
- Flexagons - http://www.enarsson.nu/flexagon/
- Includes an introduction and history of Flexagons and a tutorial in how to make a Hexa-hexa-flexagon.
- Flexagons - http://theory.lcs.mit.edu/~edemaine/flexagons/conrad-hartline-1962/
- 1962 technical report which includes an introduction to the history of Flexagons.
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