Possibly more interesting than the article itself are two links towards the bottom: http://hexayurt.com/ http://hexayurt.com/ and http://www.tilings.org.uk/Hexa

Possibly more interesting than the article itself are two links towards the bottom: http://hexayurt.com/ http://hexayurt.com/ and http://www.tilings.org.uk/Hexayurt_Family.pdf http://www.tilings.org.uk/Hexayurt_Family.pdf. Have to say if I had the money though I'd hire him to tile my front entry way in Penrose tiles of teak and walnut--- yum!