Oschene provides wonderful instructions, in his slick Sequenced Crease Pattern style, on how to make yourself a regular pentagon or decagon from a square sheet of paper.
If you’ve ever tried to fold pentagons or decagons, you might know that they are irritatingly difficult to work with, inspiring all sorts of bad language to come forth after the 5th or 6th attempt to fold them properly. So I’m very happy to see an easy to follow set of instructions on how to save myself a whole lot of pain.
You can get the diagram instructions from his website. (As he pushes the limits of sane blog header lengths in the process. What a URL!)